Is AUTHOR wrong in the post ? POST : I work at a place on the overnight shift. There are a few people at this place that honestly should have been fired years ago. A little information, I work at a place that has two separate buildings. I am in the second building and this person called Joe is in the first building. I've been warned about how lazy Joe is, and I've seen some of it. 
So tonight I get in at midnight and check in at the front desk to be logged in. I see he is asleep at the front desk. (for overnight shifts, sometimes people sleep but  not until 3 or 4 when all the work is done). I go to my spot in the second building. 
Around one in the morning I am told I had to get something for someone in the first building. The second person in the main building is older and can't go up and down steps well. the materials I had to get were downstairs. I go into the drawer next to joe, grab the keys and get the stuff. Im irritated at this point. Why was I called over when he was just as capable of doing this? He was awake at this point, I would like to add, and watching something on his laptop. 
I go back upstairs after locking up and put the keys in the drawer and look him in the face and calmly say, "If someone else needs this item, you need to get it. I'm not walking back and forth between buildings like this all night." He looks at me as though I just cussed him out. 
"Who do you think you're talking to?" He yells. I walk out, not wanting to have started an argument. I thought he was just going to shrug it off and ignore me like he usually does to people. He keeps calling after me like that until im outside. I walk back to the second building and see my friend/coworker in her car and stop to talk to her and tell her how frustrated I was. She thought it was funny and was glad I told him that. Until he comes over.
He rushes me, screaming "who do you think you are? you don't talk to me like that, don't disrespect me like that, you don't yell at me and slam them keys." I calmly tell him he needs to calm down and he doesn't get to talk to me like this. He continues going on and on and screaming at me about he wasn't the one who called me over. Which I knew but I don't understand why the person sitting right next to him, never told him to do it, but called me over. 
Im now shaking and on edge. I was scared. I didn't know what the hell was going to happen and I'm scared to be alone with him especially off camera. I emailed my boss and the person in charge of this section of the organization. At first I felt justified, but now I am scared that maybe I was in the wrong. I never slammed the keys, and I never rose my voice, even when he was screaming at me. My coworker told me to tell my boss what happened. He has no business talking to me like that. I didn't mean to start a fight. Am I the asshole?