Self-defence or "eye-for-an-eye", the cause of the violence was what I was trying to get at. Apologies for causing offence, but it gets hard to see the distinction between blanket statements and specific responses sometimes.
An eye for an eye isn't the same as self defence though, not in the slightest but I appreciate the apology, it does get my back up a bit when I feel I'm being tarred with the same brush as the racists around here.