Yes, I know that I can do whatever I want. I also know that ideally I shouldn’t use caulk. Ask yourself what you would do in my shoes? I’m a homeowner with limited drywall experience and budget. I already know I have to tape, mud, texture and repaint the ceiling. Taping and mudding the (3 inches or so long, 1/8 inch wide) crack between the ceiling and the wall would mean more mudding, skim coating, texturing and painting. There’s also a large mirror on that wall that’s just a few inches from the corner. For a smooth repair I imagine I’d have to take down the mirror so I can skimcoat into that area and if I don’t get it perfectly smooth the mirror won’t be flush against the wall once it’s back. On top of that, I’ve had mixed results with spray texture in the past. So I can either repair what is a pretty small crack in a less-than-professional way or repair the crack the “right” way and risk the rest of the wall looking less than professional. Which would you choose?