If You Don't Tip for Free Food on Your Birthday, You're a Jerk
by David Murphy on Two Cents, shared by David Murphy from Lifehacker on (#581CX)
Far be it from me to criticize those who get away with something they shouldn't for a meager gain-like pretending it's your birthday to score a free cupcake or whatever from a restaurant. It's even a little funny when your friends pull this prank on you, but only if it's done rarely; not only is birthday song...