Blondes can't watch the news twice

A blonde and brunette sit watching the 5 'o' clock news where a man is threatning to jump off a bridge.

the blonde says to the brunette i bet you $100 that he doesn't jump the brunette replies ' ok i bet you $100 that he does jump.

Sure enough the man jumped off of the bridge and killed himself.

the blonde gets out $100 and gives it to the brunette.

The brunette says 'i can't take your money.'

'Why not replies the blonde?'

'Because i watched the 12 '0' clock news and he was on then so i knew that he was going to jump.'

The blonde replied 'i watched the 12 'o' clock news as well but i didn't think that he would jump again.'