Dream About Gun In Backpack

I had a dream last night that I was back in North Carolina and I was teaching a high school class. I have no idea what the class was, but I showed up and I was unprepared. And my ex-boyfriend from high school, my first person that I was in love with, was in the class as an adult. Everyone else was a high schooler. And when I was going through my backpack, he noticed that I had a gun in my backpack. And he said, oh, you brought a gun to school? And I had forgotten it was a real gun. I had forgotten it in my backpack. And I, very convincingly, I thought, at least to me, that I told him it was a prop gun that I had from a movie set and that I had forgotten it in my backpack. And he said, oh, okay, sarcastically. And I was really worried that someone was going to find out that I had accidentally brought this gun to school. There was a teacher there who was starting off the lesson and I was very unprepared. And I was trying to get it together and it was extremely stressful.