For me it’s detailed describtions about people’s dreams.
Not only doesn’t your story make any sense, but you’re also telling me about something that didn’t even happen. It’s kind of like telling about an event, and then ending the story by saying you just made it all up, except with dreams you begin by telling it’s all made up. I’m already not interested before you even started.
Anything that you can tell they don’t know much about but they still talk about it like if they know. I guess that’s more of a type of person that a subject but I don’t mind chatting people up about what they like most of the time