A man and a woman meet

A man and a woman meet in an elevator. “

Where are you heading today?”

the man asks. “I’m going down to give blood.”

“How much do you get paid for giving blood?”

“About $20.” “Wow,” says the man,

“I’m going up to donate , and the  bank pays $100.”

The woman angrily gets off the elevator.

The next day, the man and woman meet in the elevator again.

“Fancy meeting you again. Where you off to today?” “ bank,” she says with her mouth full.