diff --git a/IRCBot.cs b/IRCBot.cs
index 9605393..1b912f3 100644
--- a/IRCBot.cs
+++ b/IRCBot.cs
@@ -1,7 +1,7 @@
+using System.Data;
 using System.Net.Sockets;
-using System.Runtime.CompilerServices;
 using System.Text;
-using System.Threading.Channels;
+using System.Text.Json;
 
 namespace riff;
 
@@ -11,23 +11,33 @@ public abstract class IRCBot
     public int Port;
     public string Nick;
     public string RealName;
-    public List<string> Channels = new();
+    public List<string> JoinedChannels = new();
+    public List<string> PermanentChannels;
+    public List<string> UserChannels;
+    public string UserChannelStoragePath;
     public List<Action<PRIVMSG>> Listeners = new();
     private List<CommandRunner> CommandRunners = new();
     private List<PollRunner> PollRunners = new();
     private TcpClient Client;
     private NetworkStream Stream;
 
-    public IRCBot(string host, int port, string nick, string realname)
+    public IRCBot(string host, int port, string nick, string realname, List<string> permanentChannels)
     {
         Host = host;
         Port = port;
         Nick = nick;
         RealName = realname;
+        PermanentChannels = permanentChannels;
+        UserChannelStoragePath = $"data/{Nick}_user_channels.json";
+        UserChannels = LoadUserChannels();
         Client = new TcpClient(Host, Port);
         Stream = Client.GetStream();
         SendLine($"NICK {Nick}");
         SendLine($"USER {Nick} 0 * :{RealName}");
+        foreach (string channel in PermanentChannels)
+            JoinChannel(channel);
+        foreach (string channel in UserChannels)
+            JoinChannel(channel);
     }
 
     public void HookCommands((string, Action<PRIVMSG>)[] commands)
@@ -69,10 +79,10 @@ public abstract class IRCBot
     public void JoinChannel(string channel)
     {
         SendLine($"JOIN {channel}");
-        Channels.Add(channel);
+        JoinedChannels.Add(channel);
     }
 
-    public void JoinChannels(string[] channels)
+    public void JoinChannels(List<string> channels)
     {
         foreach (string channel in channels)
             JoinChannel(channel);
@@ -81,13 +91,52 @@ public abstract class IRCBot
     public void PartChannel(string channel)
     {
         SendLine($"PART {channel}");
-        Channels.Remove(channel);
+        JoinedChannels.Remove(channel);
+    }
+
+    public List<string> LoadUserChannels()
+    {
+        List<string> channels;
+        try
+        {
+            using (FileStream stream = File.OpenRead(UserChannelStoragePath))
+            {
+                channels = JsonSerializer.Deserialize<List<string>>(stream)!;
+                if (channels == null)
+                    throw new NoNullAllowedException();
+                return channels;
+            }
+        }
+        catch (FileNotFoundException)
+        {
+            channels = [];
+            return channels;
+        }
+    }
+
+    public void AddUserChannel(string channel)
+    {
+        UserChannels.Add(channel);
+        JoinChannel(channel);
+        WriteUserChannels();
+    }
+
+    public void RemoveUserChannel(string channel)
+    {
+        UserChannels.Remove(channel);
+        PartChannel(channel);
+        WriteUserChannels();
+    }
+
+    public void WriteUserChannels()
+    {
+        File.WriteAllText(UserChannelStoragePath, JsonSerializer.Serialize(UserChannels));
     }
 
     public void MainLoop()
     {
         foreach (PollRunner runner in PollRunners)
-            runner.Run();
+            runner.Start();
         using var reader = new StreamReader(Stream, Encoding.UTF8);
         while (true)
         {
@@ -97,15 +146,25 @@ public abstract class IRCBot
                 Console.WriteLine($"{Nick} disconnected");
                 break;
             }
+            Console.WriteLine(line);
             IRCMessage msg = new(line);
             switch (msg.Command)
             {
                 case "PING":
-                    if (msg.Arguments == null)
+                    if (msg.Arguments.Count == 0)
                         SendLine("PONG");
                     else
                         SendLine("PONG " + msg.Arguments[0]);
                     break;
+                case "INVITE":
+                    AddUserChannel(msg.Arguments[1]);
+                    break;
+                case "KICK":
+                    string channel = msg.Arguments[0];
+                    UserChannels.Remove(channel);
+                    JoinedChannels.Remove(channel);
+                    WriteUserChannels();
+                    break;
                 case "PRIVMSG":
                     PRIVMSG privmsg = new(msg);
                     foreach (Action<PRIVMSG> listener in Listeners)
diff --git a/Program.cs b/Program.cs
index e36663a..6af0960 100644
--- a/Program.cs
+++ b/Program.cs
@@ -4,7 +4,15 @@ class Program
 {
     static void Main(string[] args)
     {
-        var cube = new Cube("localhost", 6667, "mysterious_cube", "~nebula https://git.tilde.town/nebula/riff");
+        List<string> mysteriousCubeChannels = [
+            "#testbot",
+        ];
+        var cube = new MysteriousCube(
+            "localhost", 
+            6667, 
+            "mysterious_cube", 
+            "~nebula https://git.tilde.town/nebula/riff",
+            mysteriousCubeChannels);
         new Thread(new ThreadStart(cube.MainLoop)).Start();
     }
 }
\ No newline at end of file
diff --git a/Types.cs b/Types.cs
index bf84122..9c83bcf 100644
--- a/Types.cs
+++ b/Types.cs
@@ -6,7 +6,7 @@ public class IRCMessage
 {
     public string? Source;
     public string Command;
-    public List<string>? Arguments;
+    public List<string> Arguments;
 
     public IRCMessage(string line)
     {
@@ -31,7 +31,7 @@ public class IRCMessage
                 args.Add(arg);
         }
         Command = args[0];
-        Arguments = args.Count > 1 ? args[1..] : null;
+        Arguments = args.Count > 1 ? args[1..] : new List<string>();
     }
 }
 
@@ -43,7 +43,7 @@ public class PRIVMSG
 
     public PRIVMSG(IRCMessage message)
     {
-        if (message.Source == null || message.Arguments == null)
+        if (message.Source == null)
             throw new NoNullAllowedException();
         Nick = message.Source.Substring(0, message.Source.IndexOf("!"));
         Body = message.Arguments[1].Trim();
@@ -91,7 +91,7 @@ public class PollRunner
         Callback = callback;
     }
 
-    public async void Run()
+    public async void Start()
     {
         while (true)
         {
diff --git a/bots/Cube.cs b/bots/MysteriousCube.cs
similarity index 68%
rename from bots/Cube.cs
rename to bots/MysteriousCube.cs
index 6e33ec3..382a4d2 100644
--- a/bots/Cube.cs
+++ b/bots/MysteriousCube.cs
@@ -2,31 +2,34 @@ using System.Data;
 using System.Text.Json;
 using riff;
 
-public class Cube : IRCBot
+public class MysteriousCube : IRCBot
 {
     private HttpClient RequestClient = new();
     private const string AllTriviaQuestionsPath = "data/TriviaQuestions.json";
     private const string UnaskedTriviaQuestionsPath = "data/UnaskedTriviaQuestions.json";
     private TriviaQuestion[] AllTriviaQuestions;
     private List<TriviaQuestion> UnaskedTriviaQuestions;
+    private bool ListeningForAnswer = false;
+    private TriviaQuestion? CurrentQuestion = null;
     private Random Rand = new();
 
-    public Cube(string host, int port, string nick, string realname) : base(host, port, nick, realname)
+    public MysteriousCube(string host, int port, string nick, string realname, List<string> permanentChannels) 
+        : base(host, port, nick, realname, permanentChannels)
     {
         AllTriviaQuestions = LoadAllQuestions();
         UnaskedTriviaQuestions = LoadUnaskedQuestions();
 
-        string[] channels = [
-            "#testbot",
-        ];
-
         (string, Action<PRIVMSG>)[] commands = [
             ("echo", Echo),
             ("trivia", PostQuestion)
         ];
 
+        Action<PRIVMSG>[] listeners = [
+            AnswerListener
+        ];
+
         HookCommands(commands);
-        JoinChannels(channels);
+        HookListeners(listeners);
     }
 
     private void Echo(PRIVMSG privmsg)
@@ -37,7 +40,31 @@ public class Cube : IRCBot
     private void PostQuestion(PRIVMSG privmsg)
     {
         var question = GetQuestion();
-        SendPrivmsg(privmsg.Sender, question.Question);
+        CurrentQuestion = question;
+        ListeningForAnswer = true;
+        SendPrivmsg(privmsg.Sender, $"Answer 'true' or 'false': {question.Question}");
+    }
+
+    private void AnswerListener(PRIVMSG privmsg)
+    {
+        if (!ListeningForAnswer || CurrentQuestion == null)
+            return;
+        string line = privmsg.Body.ToLower().Trim();
+        bool? answer = null;
+        if (line.StartsWith("true"))
+            answer = true;
+        else if (line.StartsWith("false"))
+            answer = false;
+        else
+            return;
+        ListeningForAnswer = false;
+        string response;
+        if (answer == CurrentQuestion.Answer)
+            response = $"{privmsg.Nick} is correct!";
+        else
+            response = $"{privmsg.Nick} is wrong!";
+        CurrentQuestion = null;
+        SendPrivmsg(privmsg.Sender, response);
     }
 
     private TriviaQuestion GetQuestion()