Maybe she was going on the assumption that if you found something you liked, you'd return after Christmas and buy it. It's their job. Nope, her tone was very much "you should buy this now". No it's not. Her job is to assist me and to answer my questions and inquiries. Sure she can say "I think you should get it", but don't stand there with a look of contempt if I elect not to. Which of course is what she did when I didn't get it.