Consent

Your character will not die, suffer sexual assault, or be permanently injured or disabled without your consent. Ever.

Anything else, please remember that IC actions have IC consequences.

And you're a grown-up, right?

Right?

Bad things happen sometimes.

In everyday terms, don't assume your character's attempt to punch somebody is going to connect, but if somebody throws a drink in your character's face for being obnoxious, s/he probably deserved it.