Ok, Rocky fans:

How many times are you required to snap your gloves in sync with Frank during the "creation" scene?

(Love this, and have been to several midnight performances years ago!)

two?
"An accident...(snap) AN ACCIDENT!(SNAP)"

Correct me if I'm wrong, but I think there are three snaps KK.

-one snap as he is in front of the microphone giving the speech about creating life (like you say with "Accident!"), then the remaining two as he puts on each of the gloves shortly afterwards.

Your right stampeding turtles:

There are three snaps.

"An Accident" being the first.
The second snap is when Frank puts on his first glove, the third snaps as he puts on his other glove.

Yes I stand corrected. I rented the movie yesterday and it was in fact, three snaps. One of the guys at Hollywood video said that he is trying to get it back here in town for a midnight showing around halloween. I may be seeing it in big screen splendor again soon!