No one is a Bad Kid. From what I have read, they are quite similar to the young people I used to do youth work with, many of whom had not been in school for a while, or were at risk of exclusion. Just need to get their interest, whether that's decorating the room (a couple went on to be painters, as it happens), or making & flying kites, which they loved, or putting a show together (we never got to a performance, but it didn't matter), or getting their bikes sorted so they could ride...
Chess actually went down well with many of them, and there were some quite talented players among them.
I learned quite quickly not to go in with a set idea of what should be happening. Just the broad framework within which it needed to take place (safe environment etc).