When Dollar General settled with the New York State Attorney General’s office, admitting it overcharged customers by as much as 39 percent—39 PERCENT!—and paying out $1.875 million to consumers, it had to be a pretty embarrassing moment. Here’s one of the nation’s biggest retailing corporations, one that prides itself on low prices and great values doing a big fat oops and hoping not too many people notice. Pricing integrity is becoming a big deal these days and once a retailer has lost a customer’s trust it’s really, really hard to get it back. Makes you wonder how many other retailers are pulling similar tricks, and not getting caught, doesn’t it?  Sure, it’s Halloween, but tricks like this are not a treat for businesses—or their customers.