I totally agree with Eryn's important point. You do not owe any SA an explanation why you are purchasing anything, or looking at anything. It almost seems like a guilty response that you were caught doing something that you should not have been doing and you therefore need to explain. I am not saying that you did anything wrong, but I believe there is so much more freedom in simply feeling and acting like you are doing something that is OK to do and that you don't have to explain or make up a cover story.