Guy Cecil

[ O O C ]
Backtagging: Basically, are you fine with going "back in time", so to speak, with your threads.
Threadhopping: Jumping from thread to thread. Are you okay with it?
Fourthwalling: Say you play Mario, and another person plays a character that has played a game with Mario in it. Are you okay with the other player having their character be all "OMG YOU'RE MARIO"?
Offensive subjects: What is your limit regarding terrible things? Does the topic of, say, child abuse really get to you/your character? Indicate those things, here.

[ I C ]
Hugging this character: Is it a good idea for another character to hug yours? Would it result in them being shot, or something? Put that, here.
Kissing this character: Would it end in mass murder?
Flirting with this character: Are they incredibly dumb, and...therefore, it'd be hilarious to see the results of?
Fighting with this character: Is your character like Naruto AKA "Ninja Jesus" -- so it's a good idea not to fight them?
Injuring this character: Is there a limit to how much another character can bloody yours up? You get the idea, now, right?
Killing this character: Are you totally for/against this? Somewhere in-between?
Using telepathy/mind reading abilities on this character: You can just put "Contact Me" for any of these, too. To save yourself time, and whatnot.
Abilities/Warnings: This is a good place to link a nice, fancy abilities post.