I feel bad as it was me that canvassed the work, the muppet rang me and threatened my family just after pat, I rang him back to try and find out what he was ranting about. He just said I had broken the unwritten rule of window cleaning and canvassed his patch and under cut him. The patch thing is an impossible thing not to do as there are window cleaners everywhere. As for undercutting, I NEVER compete on price or undercut, the only people I take on board are those that have no window cleaner or unhappy with the one they have. All fair game in my opinion, its just business. But some muppet threatening peoples families over a few quid is just madness....