The $120 tasting menu where I asked the waiter to box my leftovers

I was at this fancy spot in Austin for a second date, and the guy picked a place with a set menu, no substitutions. The food was fine, but the portions were tiny, like three bites per plate. I asked the waiter if I could take the last course to go, since my mom loves their bread pudding. He looked at me like I asked him to hand over his firstborn, and the whole table went quiet. My date laughed and said I was being cheap, which stung because I was just trying not to waste food. I ended up wrapping the pudding in a napkin myself and carrying it out in my purse. The date fizzled after that, but my mom still talks about that pudding. Has anyone else ever broken the 'fine dining' code by asking for a doggy bag, and did it sink the whole night?