A man and a blonde woman find themselves riding the same elevator one morning. Trying to make conversation, the man asks, “Where are you heading today?”
“I’m going down to give blood,” she replies.
Curious, he asks, “How much do you get paid for that?”

“About twenty dollars,” she answers.
The man nods and says, “Wow. I’m going up to donate sperm. They pay me a hundred.”
The blonde suddenly frowns, steps off the elevator at the next floor, and walks away without another word.

The following day, they meet again in the elevator. The man recognizes her and grins. “Well, fancy seeing you again. Where are you headed today?”

The blonde looks at him, cheeks full, and struggles to answer while swallowing. After a moment, she says, “Sperm bank.”
Her unexpected reply leaves the man speechless as the elevator doors slide shut.