hang on lurcherchavv and ferret feller, i was only saying what i got told, obviously i was wrong as spiderpig told me, , but around here the farmers are digging tank traps, thats what they call them, its just trenches about 4/5 foot deep, in places were it looks safe to drive throught gaps in hedges, e.t.c, f*****g lethal for running dogs.
i know a few places i used to go....have a trench dug round the outside of fields to stop motors from getting in....but not in the middle of a field...never seen it before