A man goes to the dentist with a terrible tooth ache. The dentist examines the tooth and reaches for some novacaine. The man sits up and says "No needles!" The dentist lays the needle down and turns on the gas. The man sits up and says "No gas!" The dentist gets up and walks out. He returns with a glass of water and two pills. The man swallows the pills and asks "What are the pills?" The dentist says "Viagra." "Why Viagra?"the man asks. "Because you will need something to hold on to when I pull that tooth." :shock: