I'VE NEVER SEEN ANYONE ACTUALLY "ROLLING ON THE FLOOR LAUGHING:. GIGGLE, SURE. SNICKER, TITTER, CACKLE...OF COURSE. I'VE MADE PEOPLE CHORTLE. ONE TIME IN COLLEGE I EVEN GOT A GUY TO GUFFAW. SADLY, HE HAD TO SPEND THE NIGHT IN THE ER WITH A TORN ULNAR NERVE.