The sun sets from fear of Chuck Norris.
Why did President Harry S. Truman drop the first atomic bomb?
Because he thought it would be more humane than sending in Chuck Norris.
If you can see Chuck Norris, he can see you. If you can't see Chuck Norris, you may be only seconds away from death.
If at first you don't succeed, you're obviously not Chuck Norris.
Chuck Norris was the first one to Mars, that's why there are no signs of life.