YES, & how about catching the dishonest ones too. I gave a $20, & got change back-for a $10...called him on it & he says without blinking an eye-oh I just thought you gave me a $10---I worked in retail & trained cashiers, there are a few that are slick enough to pocket the extra as the customer has the right to demand the drawer pulled & tallied to the sales-& of course the drawer tallies-but I caught a few too.