I've always used auto-wind cameras. So I was jazzed when I got my first Canon F-1 six years back and went out shooting. Finished the roll, started cranking, felt it getting stiffer and stiffer, heard the film rip same time as the crank suddenly loosened... Oh, yeah, so that's what the button on the bottom of the camera is for... Damn. Naturally my friends all stood there laughing at me.

What's really embarrassing is I did the same thing a month later. Duh...