Wally, Alice and Dilbert sit at a table in a restaurant. The waitress hands them the check and says, "Thank you. Please come again." The waitress thinks, "After I'm dead." Dilbert says, "If we each put in twelve dollars, that will give her a healthy fourteen percent tip." Wally says, "The service was excellent. I'll put in a little extra." Dilbert and Alice say, "Me too." Dilbert counts the money and says, "That gives us . . . Um . . . Only thirty-four dollars." Dilbert says, "One of us is a cheap, lying, unscrupulous weasel." They look at each other. Dilbert says, "Or maybe the service was bad." Wally says, "She didn't smile enough." Alice says, "Same as last week."