A couple times. Usually when I am tired I end up saying things to friends as if I was playing a game with them.
For Instance:
A friend and I were at Best Buy looking at TV's. As we were looking an incredibly attractive employee came up behind my friend to ask if he needed help finding anything when I blurted out, "Look out T. You're being attacked." Which netted me quite the odd look from the lady. =(
Another time in a local Italian restaurant when asked what kind of pasta sauce I would like I blurted out noobsauce. My waiter must have been a gamer because he started laughing, so I didn't feel as dumb as I did in the first example.