Knock, knock.
Who’s there?
Luck.
Luck who?
Luck through the keyhole and you'll find out
Little Jimmy's mother was serving prunes for dessert, but little Jimmy didn't like prunes one little bit! He grumbled and complained and absolutely refused to eat them. Mother was very cross and told Jimmy that God would be very angry if he didn't eat his prunes. Still he wouldn't eat them, so in desperation, mother sent him to his room. Later in the evening a fierce thunderstorm blew up. There was much thunder and lightning. Feeling somewhat sorry for little Jimmy and thinking that he might be afraid of the storm, mother went up to his room. When she opened the door, Jimmy was kneeling looking out the window. Mother heard him say, "Gee whiz, God, all this just for two measly prunes?"
As a member of an Internet awareness survey team, we had visited a home. The unruly owner asked, "Tell me the difference between washing machine & Internet?” When I was cursing my luck, my colleague answered, "The former washes your cloth and the later washes your brain."
When you call a dog, they usually come to you.
When you call a cat, they take a message.