I was back in college -- my first one, not the one I ended up graduating from -- and walked into concert band rehearsal, only to realize that 1) I hadn't signed up for classes this semester, and 2) I hadn't really shown up for rehearsals the previous semester. The band director (who in real life was the percussion ensemble instructor) looked extremely disappointed in me, walked all the way across the auditorium to lead me away from the percussion section and towards the upright basses. The implication was that he was so disappointed in my drumming that he thought I needed to learn a new instrument. I realized in that moment that learning another new instrument -- I'm already learning the mandolin -- would be too much, plus I wasn't even enrolled in that class. So I apologized to the band director and left.
On my way out the door, I checked Facebook and saw that I had apparently posted some awful secret about the band director's kids(???), claiming to have been bribed $5 to do it -- but I had no memory of doing that and hadn't even known that secret until then. Horrified, I deleted the post immediately, and started planning a lengthy apology email to the band director, explaining everything, and hoping that I'd be able to come back to band someday.
I headed "back home", which led into what was essentially a second dream. I was living in one of four rooms in this unusual and modern house -- my room was connected by a long hallway to another room, and I didn't know the people who lived in it. The doors connected to the hallway led to 1) my room, 2) their room, 3) a bathroom, 4) a huge patio overlooking a forested cliff face, and 5) the main part of the house (which I never saw). I was holding something that I needed to put back into my room, and I opened a bedroom door and threw it in -- realizing too late that it was the wrong bedroom. So I awkwardly knocked on the door and apologized for doing that, and asked if I could go in and retrieve it. So I went in and as I was trying to get to the thing -- for some reason their room was incredibly tall and had a LOT of mezzanines(?), so I had to do a lot of climbing and going up and down stairs -- I was talking to the guys living in the room and getting to know them. And all the while there was this undertone of insecurity and shame from what happened with the band director in the first part of the dream.