When Fred knocks over the cabinet, the rubber leg of the table can be seen wobbling.
The cash Lamont says he got out of Fred's piggy bank looks way too nice and neat to have been money that was shoved into the slot of the average piggy bank.
While officer Swanny commends Fred for being brave enough to take on four robbers, the shadow of a microphone can be seen moving on Officer Smitty's head.