Sooo, I wonder if Trevor and Simon will sort of "communicate" through the mirror of fate? Like;
Simon: *looks in mirror* Hey, grandpa/daddy. Are you there?
Trevor: Yeah.
Simon: Do you have a key to the Clock Tower?
Trevor: Yeah. Why?
Simon: Door is locked, can't get in. Could you maybe leave the door unlocked in your time? Or hide the key for me somewhere so I can find it in the future.
Trevor: Sure, I'll put it inside a piece of wall meat in the torture chamber, next to the iron maiden. You can eat the meat while you're at it. Gives you strength, son!
Simon: Great, thanks! *looks in wall* Ok, so I got the key, but... I'm not eating that. It's rotten now!
Trevor: Was fine when I put it there. Don't be picky.