Paul,
I once had a tenant in a place attempt to set his dog(a Rottwieler(sp?)) onto me, to try and prevent me from pulling the pillar box fuse.
Long story short, I rang the police, eggheads like this, I've got NO time for!!.
I've seen it all, mate, rental accomodation over here, is full of people that just don't care about the place they live in, even though they don't own it, no respect for other people's property!, this really gets me going.