There is a dog owner near me who has a bull terrier that has bitten three dogs on the muzzle recently and it cannot be let off the lead but will bite any pup that's within six feet of the chord retractable lead. I have reported him to the police for HIS violent threats toward me and his dogs demeanour but still he threatens me regularly and being a certificate holder I can only stand and take it. The guy is an absolute zoomer with this dog being used as an aggressive tool. I could put him on his arse with a near miss but we all have to be careful don't we? This dog WILL maim a human or dog in the coming year I know this but he is in total denial. Any suggestions??