I had to leave the theater during "Platoon" because the movie caused me to have a panic attack.

It happened during the scene when Charlie Sheen saw a VC soldier peeking out at his unit from behind a tree in a haze of fog late at night while his unit was sleeping. The fact that the soundtrack included the sound of a heart beating faster and faster did not help.

I did not ask for my money back, because I thought what I'd seen of the movie so far was excellent; I just couldn't take it.

That's the only movie I've ever walked out on, though I did fall asleep during a Pokeman movie that my nephew begged me to take him to see.