Q: How can you tell if…

Q: How can you tell if a blonde used a computer?
A: There's Wite-Out all over the screen.
Jokes, +1:
One fine day, a priest, a rabbi, and a high priestess decide to all go fishing. They manage to get to the water, and off they go. One hour later, the high priestess says, "I think I forgot the food!" She steps off the boat, walks across the water, gets the picnic basket, and walks back! As they are eating, the priest thinks, "What a display. Jeez, where does she get off walkin' on the water?" Right then, the rabbi says, "Oye! I forgot the drinks." He steps right off the boat, and walks across the water to get the drinks. By this time, the priest is very frustrated! He excuses himself, and as the priest steps out of the boat, he falls in the water. The high priestess turns to the rabbi and says, "You think we should have told him about the rocks?"