A masked man walks into a sperm bank, pulls out a gun, and tells the secretary that it's a stick up and to open the safe.

The secretary replies, "You idiot, this is a sperm bank, there's no money in here!!"

The masked man tells her that if she does not open the safe he will shoot her on the spot. Reluctantly, she opens the safe and stands back. There in the open safe are two vials of sperm.

The robber points his gun at the two vials and orders the secretary to drink them both, telling her that if she refuses then he will blow her head off.

As she finishes drinking the second vial the robber takes off his mask. There stands her husband with a huge grin on his face!!

"See Honey", he says. "that didn't kill you, did it?!"