I don't mind at all being asked, but being asked that many times in such a short period just seems like they are trying to say they don't want you there. I've been in retail before and one of the first things they tell you to do is qualify your customer quickly. Not because it necessarily helps you make a sale, but if the person was planning on stealing something, it lets them know "I see you there, and I know what you are up to." I understand the need for this and I don't mind being qualified as a customer, but 5 times in 10 minutes is just harassment and it cost this particular shop a sale. There are plenty of other places around here to go and I won't be going back to that one.