Astronomers got tired of watching the moon rotate around the earth for 24 hours, so they just called it a "day".
A woman noticed her husband standing on a bathroom scale, sucking in his stomach. "Ha! That's not going to help!" she said. "Sure it does," he said. "It's the only way I can see the numbers."
I was at the bar with a friend, and he said to me, "Veronica, I just stopped a rape." The bartender overheard him and had a puzzled look on his face, because he never moved. He then said, "I saw this girl walk into the bathroom, and I decided not to go."
What do you call someone who points out the obvious? Someone who points out the obvious.