The discerning nutter will always have an xbow not far from his(and it's almost certainly a him) side.
There was one who travelled on the school bus with us who would "say it with a bolt" last I heard he was found swinging in a farmers shed having done "things" to a sheep dog and then killed it.
I remember a standoff years ago between a local nutter with a crossbow and one of my mates with his dad's 4/10, pretty scary at the time, but successfully defused by the local rozzer and my mates dad, (who belted him quite well for nicking his gun). Crossbow confiscated and the magistrate wasn't required. These days I reckon the incident would involve the men in black, tazers, HK's, the media, and at least one dead body..... thats progress I guess.