Some bruises you wear like badges of honour: when you got it playing rugby, or quad racing, or falling off something while drunk, no opportunity is lost to show off a good contusion. A bruise inflicted by someone else, however, is a whole other story: it's like a big flashing arrow marking you out as punchable, and before long there'll be boys queuing up to add bruises of their own, as if they'd just been waiting for somebody to show them it could be done.