Mini-Psychotic Episode

Do you ever get the feeling, when you've been really gripped by a well-crafted action sequence in a movie, or you're sitting on a train with the earbuds in and the iPod has shuffled to a favoured track, that maybe you've been bouncing round the cinema whooping, or rocking out in your seat in front of all the other commuters, or had some kind of embarrassing mini-psychotic episode that you've completely failed to notice?

Because it worries the shit out of me, I can tell you.