WHAT?? So he complained to your Boss and your Boss made you ring him and say sorry??? So you have he's phone number??
You could always get a Mate to phone your Boss (place of work) and pretend to be one of the kids fathers and say who lets a Moron swear and shout in front of my kids whilst at a place they enjoy being and who's care I trusted with you rant rant rant then he'll be in the sh!t

Or get a mate to follow him home and Bingo you have he's home address for much more fun, ie paint stripper, or broken windows in the van and front room at 3 in the morning, the list is endless..
Its much better at home as he wont know its you for sure, unless you leave a calling card a Tee maybe wedged in he's eye
