Kevin walked into a sports bar late one night, and sat down next 
to this blonde at the bar and stared up at the TV. The 10:00 
news was on. The news crew was covering a story of a man on a 
ledge of a large building preparing to jump.

The blonde looked at Kevin and said, "Do you think he'll jump?"

Kevin said "You know... I bet he'll jump."

The blonde replied, "Well, I bet he won't."

Kevin placed $20 on the bar and said, "You're on!"

Just as the blonde placed her money on the bar, the guy did a 
swan dive off of the building, falling to his death.

The blonde was very upset and handed her $20 to Kevin, saying, 
"Fair's fair.  Here's your money."

Kevin replied, "I can't take your money, I saw this earlier on 
the 5 o'clock  news and knew he would jump."

The blonde replied, "I did too; but I didn't think he'd do it 
again."

Kevin took the money.