The brunette responds by saying "I'll bet you $5 he will jump."
"Well I bet you $50 he won't jump," the blonde retorts.
"You're on!!" says the brunette.
After some time the boy finally jumps. The blonde pays up. As the brunette is walking out the door she turns around and says "I can't take this money from you. I saw the whole thing on the 5:00 evening news."
The blonde says "So did I, but I didn't think he would do it again."