AITA for wanting to go above my boss and report my coworker to HR after repeated hostile interactions?
I (26F) recently started working overnight security at a large property. There are only two of us on shift overnight, and one person has to stay in the office while the other handles patrols and breaks. I came from a management background where communication and coordination mattered a lot, so I naturally approach things with a team mindset. My coworker (“Derek,” 40sM) seems to take every interaction I have with him as some kind of personal attack.One of the first things that concerned me happened during patrols. The property is under construction, so there are contractors and extra workers constantly in and out. We have required patrol points that need to be checked and photographed throughout the night.One night, I ended up doing the same patrol Derek had supposedly completed about 10 minutes earlier and found a room completely flooded from an overflowing bathtub. Not a small leak — badly flooded. It looked like it had likely been running for a long time, which made me concerned the patrol either wasn’t being completed thoroughly or maybe wasn’t actually being checked.I also brought up concerns about entire floors of doors being left open overnight because it seemed like a huge security/liability issue considering how many people are constantly entering the property.Derek basically told me to stop worrying about it and leave the doors open.Then another situation happened involving employee lockers. Management was trying to verify which lockers were empty because seasonal employees come and go, and locks needed reassigned correctly.One locker was listed as empty, so I opened it to verify it was unused. It turned out to be Derek’s locker, and he immediately accused me of doing it on purpose even though I was following the list we were given.That interaction escalated into him yelling at me, and that’s when I brought everything to my boss because between the aggression and the safety concerns, I was uncomfortable.Since then, every interaction feels tense.Before work tonight, my boss realized he accidentally scheduled me 6 days this week and asked whether I wanted tonight or tomorrow off. Since there’s usually a coverage gap between 5-7am with Derek, I asked which day would be easier to cover. My boss said tomorrow, so I agreed.Later, Derek asked what happened, so I explained the conversation. He then told me to “back off and mind my own business” and that I had no right to know anything between him and management.Then later around 2:30am, I asked if he wanted to take his break since he started earlier than me. I only asked because if he leaves the office, I have to cover it. His response was: “I’ll tell you if I want something otherwise leave me alone.” Between the accusations, yelling, dismissive comments, and hostility over basic communication, I’m genuinely uncomfortable interacting with him. I already brought the yelling incident to my boss, but WIBTA if I escalate this to HR?