What expression do you use to say
Do not inflict any serious injury to me.
It would be the same as
Don't hurt me.
However, what I would like to say is not some thing like,
Stop poking me. It hurts. Stop hurting me.
But rather, in situations like I am being mugged in the corner of the street.
I see you have got a barbed club and a knife. You are mugging me. I will give you my money but Don't hurt me.