I personally love the reaction of some people to the screen savers on
the Macintoshes in our computer lab.  I was sitting next to a blonde
(at that point I didn't place any significance on this fact) who was
typing a paper, and by the way she was doing it, it was clear that
this was just about her first time.  Well, a friend of hers sat at the
computer across from hers, and they started chatting... and yup, the
screensaver kicked in.

The scream was heard, I was told, around two corners in the hallway.

But there's more... after she'd nearly passed out, her friend just
told her to move the mouse to get back to what she was doing, that she
didn't lose anything, in fact.

She didn't count on the fact that when her friend jumped up in
hysteria she'd bumped the keyboard/mouse connector out of the
socket...