I had a friend who broke his toes repeatedly to do so before track events. I had another friend in physical rehab that used to purposely sit on his own testicles to trigger an AD fit for the same purpose.

It's a pretty terrible feeling, but I guess if there is a strong enough desire to win you can put yourself through whatever you need to. I've gone through a lot of shit medically, but AD and the accompanying loss of blood pressure and uptick in heart-rate is one of the closest to "feeling like i'm going to die" i've ever been.