Pearls Before Swine by Stephan Pastis for September 30, 2010
Man says, "Excuse me, but could you do me a solid and pass the ketchup?" Rat says, "I'm sorry, but did you just use the expression, 'do me a solid'?" Man says, "Yeah. Why?" WHACK Goat says, "There are better ways to handle expressions you don't like." Rat says, "No there's not." Pig says, "Well... you did give him a solid."