I'm thinking of beating the hamster over the head with a club.
How could you do that to a rodent? Is it already dead?
It would die. The hamster is badly injured already.
You should take it to the vet if that's the case. If it can't be saved, let the vet make that call.
I'll beat it regardless, there is no point taking it and I want to feel its brains!
It is really cruel to kill animals. Beating creatures to death is an unhealthy way to take out your anger and frustration. Please try to find other ways of coping.