spoilsport fence, that's a good one. i did a bit of accidental urban exploring a while ago whilst out on a walk with friends. it was an old mill building, in a huge flattened out site, they hd a fence but the gaps were very easy and in fact we wandered into the grounds simply cos it was a straightforward route, then we just got sidetracked cos the mill building was very interesting, had a sort of inner courtyard with an old water wheel. so we went to look at that and before we knew it, we'd gone through the doors and up onto the floors. what was cool was all the stuff that had been left, like in the toilets, they had the little soap dispensers on the sides, but spider colonies in all the sinks. and some good graf from people who had been before. probably wouldn't have gone if i was alone though, loads of pigeons around so walking about the place made noises go off in other bits.
i did this talk a few years ago at a psychogeography festival, about a graffiti writer in manchester called 'Whale' and this couple who came knew a lot of the tags i was showing on screen, so we got chatting after and they said they were now big into doing writing in these derelict places, but they were going in tunnels and all sorts. i followed them on instagram for a while before i deleted my account, they were quite serious about it, ropes and safety gear, all that.