Not long ago a patron of a café in Chicago summoned his waiter and delivered himself as follows:
"I want to know the meaning of this. Look at this piece of beef. See its size. Last evening I was served with a portion more than twice the size of this."
"Where did you sit?" asked the waiter.
"What has that to do with it? I believe I sat by the window."
"In that case," smiled the waiter, "the explanation is simple. We always serve customers by the window large portions. It's a good advertisement for the place."