My trainer is trying to kill me

In an effort to not die prematurely on my own, I knowingly have entered into a relationship with another human being who is highly trained in the dark arts of exercise and fitness. Who is trying to kill me. His name is Patrick and is a very nice human being, right up until we walk out onto the gym floor for our hour long weekly session. Patrick is convinced that my body can do things I know it can't. That is his job after all. Little did I know that he would actually be right. I can do thing faster, longer and with heavier weight than I would have possibly imagined. Again, his job. And he knows his job very well.