A group of guys wanted to rob a bank, but they didn't want to cause a scene in the day time.
So they decided to break in at night. When the robbers got to the safe they found no money, but instead, they found what they thought, were cups of yoguart.
One robber said "Dang no money, but at least we get a free meal." The robbers ate till morning then left.
The next day the news paper headline said, World's Largest Sperm Bank Robbed!