When you're chatting with your friend on MSN at the office and your boss is dangerously near your computer. Your friend should be aware of that and don't reply until he gets your OK.
DaPlaya69: Hey dude! I gotta tell you that story!
DaPlaya69: I was with Monika yesterday. We start drinking and we've been into my hot-tub!
Alex @ work: Awesome! And what happens?
DaPlaya69: You wouldn't believe how horny she was!
Alex @ work: BADR!!