When I was ion the air force I was laying in a mate's room and his drop kick room mate comes in, kicks my thigh leaving blood and bruising I get up ready to bash him as he pushes me up against the wall by my shoulders leaving both arms free and his legs astride so a swift kick to the nuts was offering.  I knew if I started hitting him, he was going to need a hospital as my martial arts training had kicked in.  He wasn't worth an aggravated assault charge so let it be.  Two weeks later he tried to commit suicide so wasn't the full two bob anyway.  Funny thing the only words I had spoken to him prior was 'Hello'. He tried to approach me again much later but the look of 'fuck off you had your chance' in my face turned him away.

Guess I just answered my own question there.