diff --git a/matrix/events.py b/matrix/events.py
index 0a38034..90b78a1 100644
--- a/matrix/events.py
+++ b/matrix/events.py
@@ -150,16 +150,6 @@ class MatrixSendEvent(MatrixEvent):
         self.message = message
         MatrixEvent.__init__(self, server)
 
-    def execute(self):
-        tags = [
-            "matrix_message", "notify_none", "no_highlight", "self_msg", "log1"
-        ]
-
-        buff = self.server.buffers[self.room_id]
-        room = self.server.rooms[self.room_id]
-
-        self.message.execute(self.server, room, buff, tags)
-
     @classmethod
     def from_dict(cls, server, room_id, message, parsed_dict):
         try:
diff --git a/matrix/rooms.py b/matrix/rooms.py
index 09e61a4..07f9ef6 100644
--- a/matrix/rooms.py
+++ b/matrix/rooms.py
@@ -428,12 +428,7 @@ class RoomMessageSimple(RoomMessageEvent):
 
 
 class RoomMessageUnknown(RoomMessageSimple):
-
-    def execute(self, server, room, buff, tags):
-        msg = ("Unknown message of type {t}, body: {body}").format(
-            t=self.message_type, body=self.message)
-
-        self._print_message(msg, room, buff, tags)
+    pass
 
 
 class RoomMessageText(RoomMessageEvent):