Think of PCP-driven berserkers flipping cars with their mere, ordinary human strength, fully unleashed without regard to injury or death, and you've got some notion of the problem posed by a delusional man who thinks he's Samson.
I used to have a wrestling coach that used the very un-PC term "retard strength" to refer to the ability of an opponent to apply lots of force from angles you wouldn't think they could a priori (as a compliment, not a slur).
Rationality quotes time!
The usual rules: