I've never taken painkillers, ever. I don't see a reason in taking them, as you can as well endure the pain, and gradually gain higher resistance to it. Maybe you'll get badly hurt in an accident some day with no painkillers to aid you. A pain resistance could definitely save your life then. Either that, or maybe I'm just masochistic.

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram