diff --git a/redbot/core/core_commands.py b/redbot/core/core_commands.py
index 7314b87c0..e421653c4 100644
--- a/redbot/core/core_commands.py
+++ b/redbot/core/core_commands.py
@@ -280,7 +280,7 @@ class Core:
         guilds = sorted(list(self.bot.guilds),
                         key=lambda s: s.name.lower())
         msg = ""
-        for i, server in enumerate(guilds):
+        for i, server in enumerate(guilds, 1):
             msg += "{}: {}\n".format(i, server.name)
 
         msg += "\nTo leave a server, just type its number."
@@ -313,6 +313,9 @@ class Core:
         try:
             msg = await self.bot.wait_for("message", check=conf_check, timeout=15)
             if msg.content.lower().strip() in ("yes", "y"):
+                if server.owner == ctx.bot.user:
+                    await ctx.send("I cannot leave a guild I am the owner of.")
+                    return
                 await server.leave()
                 if server != ctx.guild:
                     await ctx.send("Done.")