I don't have anything horrid, just kind of .... ehh? My parents historically bat about .500; better when we were younger and increasingly bad as time went on. My first Christmas with my husband, they got me an emergency kit for my car. Not too bad of a thing to have, and I don't mind getting practical gifts, but every item was wrapped individually and pretty much everything under the tree for me was that! My mom appropriated a box of fuzzy socks that had been meant for my sister and repurposed them for me when she saw how badly this ended up coming off. This has forever colored my husband's view of my family's gift giving. They are impossible to buy for too. I was relieved when our daughter was born and my mom announced that Christmas should be for children so we will just give gifts to the kids from now on. Works for me! All the adults have everything they could ever need or want. I would rather not get presents than get something that is not at all my thing.
They did do a big gift with several portions wrapped up separately one other time when I was younger, but that was a fun item (a loom) so the presentation wasn't a problem in that case.
The year my ex-boyfriend and I were together at Christmas, everyone in his family gave me and his brother's girlfriend all the same gifts. Same coat, same scarf and hat set, same stuffed animal, etc. It felt like neither they nor my boyfriend could really be bothered to figure out what I might be interested in (and probably nobody bothered to figure out what his brother's girlfriend would be interested in either). I still have the coat, which is so not my style but is nice quality and warm... I can't typically bring myself to wear the fake-fur-lined snap-off hood with it. His dad and stepmom between them had 4 grown sons and they got some sort of deal so all the wives & girlfriends got this same coat.
And this wasn't a Christmas present, but the engagement ring story reminded me of it. With a different boyfriend in college, I'd been eyeing this ring from one of those traveling jewelry booths that came to campus, but didn't end up getting it. He bought it for me for my birthday. Which would have been nice except that I had been talking about the future a lot and he was so not even interested in the topic. I think it's kind of thoughtless to buy your girlfriend a ring that isn't an engagement ring when she wants to get engaged or at least discuss it and you don't. (Note: I am not a materialistic person. I would have gotten engaged with that ring, which was a $10 sterling silver ring set with a tigers eye stone, if that had been what he had wanted. But it hadn't even crossed his mind that I might be bothered by this. Gah!)