Im not sure about the burnings so I cant comment. As far as tarmac is concerned I have never heard of anyone tarmacing someones drive without permission. The thing is done as follows : They say " we have some tarmac left over from a council job and your drive looks like it needs redoing so we will do it for £100". So the tarmacee agrees and the job is then done and he gets a bill for 10 times the £100 on the basis that it was £100 per sq foot or sq yard or whatever. Well the tarmacee has been conned. As far as dealing in cash is concerned, I always use cash and do not pay for things using a card unless it is a big chunk. Scrap metal, well I have dealt with travellers over this and as I said before they are agressive but ok.