I know at a few stores (i know this cant relate to every store) we're allowed to put cups in the back to purchase later. My bf saved me a cup that I really wanted and wanted to give it to me since this is our first christmas living together. Since the store I'm at is a high volume store and we sell out of things really quickly. He put it in a bag and put his name on it. He got the OK to do it and was gonna buy it today. One of his coworkers took it out of the bag and took it for herself. It's ok I'll live, but i wouldnt ever be that selfish and do that. Especially if someone was saving it. Be nice to your fellow partners especially during the holiday season!