|After ordering a milkshake, a man had to leave his seat in the restaurant to make a telephone call.|
Since he didn't want anyone to take his drink, he took a paper napkin, wrote on it, "The World's Strongest Weightlifter," and left it under his glass.
When he returned from making his call, the glass was empty. Under it was a new napkin with new writing that said:
"Thanks for the treat!"
"The World's Fastest Runner"