So 3 of my friends are all playing Left 4 Dead 2 (Deitylight is one of them) and we're all on Skype. I log on and hear them, and I immediately figure out they're playing it. Now, I'm able to actually do a decent imitation of a Hunter, Tank, and Witch. So they hear a Hunter, I do the Hunter scream and they freak out a bit. Then they hear a Witch, and I do the Witch's sobbing, and one of them goes "Why does that Witch sound so close too me?!" Finally, when I know there isn't a Witch around, this happens:
Me: *witch sobs*
Friend 1: I hear a Witch....
Friend 2: Wait, that doesn't sound like a witch, I hear no music.
Deity: Hey wait a minute, who is tha?
Friend 2: Oh my gosh, that's Jordan! (Me)
Me: *busts out laughing* You guys actually fell for it!! AHAHAHAHAHAHHAHAHAHA!
Deity: You sadistic douch!
Friend 2: That's because you did the sound effects as soon as we saw them!!!
Ohhh man.....that was my laugh of the night. Have any of you guys had any similar experiences, such that you knew how to freak out your friends when they're playing a game?