Putting things back

I hate it when something is on sale...but only certain versions of it. My son likes Hot Pockets. Okay...good sale...coupons. Except I find out when I get up to the register (self-check, btw, is what I prefer) that the sale only applies to certain versions of Hot Pockets. So I hit the 'help' button, which makes the register number flash, and I ask Gracie (who watches over the self-checks) if she'd please put the 3 that aren't on sale back. No problem. But I was damned if I was going to pay full price for those puppies. I ended up with just one box and did pretty well between the sale price and the coupon. $2-1.50=50 cents final price. Not bad at all!