How easy is it to know someone unconscious with a blow to the head?
If you hope to take by surprise an opponent against whom you would not survive in a fair fight, hitting him/her on the head without a successful K.O. could get you in some serious trouble. Or, if you are capable of winning a fair fight but are trying to be stealthy and therefore want to avoid the noise involved in a fight, a blow to the head not resulting in a K.O. may result in the victim howling in pain, thus blowing your cover.
In the movies a blow to the head works every time. But I wonder how accurate this is. How hard a blow is necessary? At what point on the head should one aim. Remember we don’t want to kill anybody.
Please respond as quickly as possible. I am writing from the dungeon of a madman who is intent to take over the world. There is one guard guarding my cell who I must get past (the guard has kids- I’d hate to have to kill him, after all, he’s just doing his job).
Available materials include a blackjack, a beer bottle, a frying pan, and a vase.