Go an make his life hell. Dress a bit different,Take a big list, "Excuse me I have to do some shopping for my whole family today, I hope you can help me . make him look around for all types of stuff with you off the shelves,flavoured connies,worming tabs,anus cream,thrush ointment wart remover cotton wool ,Oh sorry you'l have to put them back,I ment cotton wool buds;give him the the whole nine yards ,After he hauls them all up to the counter ; you say you know what? I was just testing your work ethic out after you were so rude the other day. "You ever fuk with me or any of family or friends again and we will be waiting for you outside.

B# check out where he parks and stab every tyre through the wall with the knife you inserted out of the end of your shoe.

A + B = C-See dont ever mess with me.

Ive pumped super glue through the locks of a car business that messed with me once.

I was going to go in there and stab a hole in all of their plastic car oil containers and turn them all around in the shelves for them to find an hour later but I went for the keep them out of work for a few hours trick instead.