Regulars

Does anyone have any regular customers come in? If so, are they good or bad and why. I'll go first, mine is a bad regular, we have a lady who comes in with like 10 different phone numbers, piles and piles of coupons, and a bunch of rainchecks. She'll buy stuff, get more coupons and then run from the counter and come back with more things. Whenever we see her, we know we are gonna be at the register for an hour minimum. She does this because she knows she will confuse us and that will make it easier for her to swipe stuff off the counter that she hasn’t paid for.