For non-UK members; Charvers (AKA Chavs, Neds) - http://en.wikipedia.org/wiki/Chav
I've had the odd run-in, but considering I grew-up in council housing including two areas largely populated by charvers, I've largely gone without much trouble from them - at least not directly, my next door neighbours fight and play rave music till 6am and keep trying to kill each other in the middle of the street...glassing each other, etc. I get the occasional verbal abuse when passing the local pub, but that's it.
In high school I once had a house party, it caught the attention of some particularly nasty charvers from further up the street, they came into my home and up into my bedroom...at the time I was a Marilyn Manson fan, posters of him all over my room, so here was I thinking they were going to kick my head in...nope, one had a cousin who was into Marilyn Manson, they even started singing some of his songs. Along with this I started running a lot of parties, which were often gate-crashed by these charvers, so I gained some favour with them and thus wasn't as badly bullied as I could have been towards the end of high school.
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Bloodheart
Good-looking girls break hearts, and goodhearted girls mend them.