At work I guess I was in a daze walking around and I guess I didn’t notice someone was coming up behind me and I didn’t hold open the door for him. He went out of his way to catch up to me and yell at me for not holding open the door for him. I didn’t even notice!! He walked away before I could say anything.

I am totally confused and can’t help thinking about it. I’m a little upset that he yelled at me but mostly confused.

Should I just assume he was having a bad day?