A male crab met a female crab and asked her to marry him. She noticed that
he was walking straight instead of sideways. Wow, she thought, this crab is
really special. I can't let him get away. So they got married immediately.
The next day she noticed her new husband walking sideways like all the
other crabs, and got upset. "What happened?" she asked." You used to walk
straight before we were married."
"Oh, honey, " he replied, "I can't drink that much every day.