This drives me crazy it happened this past Saturday in JoAnn's I ran in to pick up something I needed in a hurry. My bill was $11.10 I gave her $20.10 and then I saw I did have a one so I said or here left he give you the one also. It took 5 minutes plus the manager to come over I said all I need is a $10.00 bill back? The sad thing the manager was just about a stupid! Drives me crazy also.