Random Attack

The OP I would guess is not native to the UK and therefore not used random pointless acts of violence because they only really occur in the UK believe it or not. In other countries people mug you.

Tell that to my mate who got kicked to shreds in Berlin by some skinhead nazis "just for fun". Or to DJ guy I know, Dave Congreve, who got his leg kicked so he nevers walks normal again in Barcelona, probably because he's english, but mugged he wasn't.

Random acts of violence are sadly a reality in human nature. And apart from random gut feeling nothing prepares for it :(