No offence mate but if you go round there with big blokes standing at the bottom of the drive to "have a quiet word", anybody who has ever had any experience of violence with sense a mile away you are scared of him because you needed to bring your mates with you. He'll slam the door in your face and come looking for you when your mates arent there then when he finds you going to work one morning on your own you might find yourself in a big puddle of $hit and you dont have the proper shoes.

Do the sensible thing and let it roll and get your Mrs to change her number if you cant sort it out on your own.