So, in my store, we don't have 2 SLs in the mornings, and our current morning SL (39M) had to be moved to mornings (our last one quit (31F) , the SM (47F) used to cover as an SL until the last one quit so she moved a night leader and she covers his free days). I knew the guy, never bothered me much. However, it's been less than a month and everyone agrees that he looks at us like trash. He deadnamed someone for a week straight even after being told that that wasn't it. He obviously is one of those guys that is overly confident but he does his job so he isn't threatened by much, but he keeps telling the rest of us to not mind what our manager has specifically told us not to do. Like pumping too much chai (which our DM has said no to). I am wondering what I should do as a barista, because today someone came in and refused to wear a mask (We never refused service but we have been told to be insistent by our manager unless it is a medical condition), after he told me it was medical (which, he looked at me mockingly BECAUSE HE KNEW I HAD TO LEAVE IT ALONE BY SAYING THAT), I was too upset so I went to make his food after asking someone else to take the order. The other barista also has been told to ask them, he didn't know he refused with the medical reason. The SL walks in, says that if he refuses about wearing it, we leave him alone. I leave the guy alone, make his food, leave it on the counter and just continue doing my job. I ask him to talk with me later. He tells me he can now. I try to explain that as I lost someone to covid, regulations are something I want to be followed, and that I left the guy alone after he said it was medical, but that our SM has previously said that even when we can't refuse service, we have to be insistent and if they don't want to follow store policy, they can very well just come through the drive thru, unless it is medical and that the guy's initial reason of I don't want to wear one wouldn't cut it (aka follow the rules or don't come in). I also rerun the situation to him and tell him he might have mistook the situation as me or the other barista denying service. He gets agitated and process to tell me that he doesn't care about what our SM has to say (which, mind you, it's not the first time) because it isn't starbucks policy and he has been working for the company for 10yrs etc, etc. His demeanor was aggressive enough to trigger a panic attack on me, he only backed down when I no longer could speak. I told a coworker and she was like, okay, that is the last straw, we have to make a list and report him to our SM, because she makes several of us uncomfortable and we disagree with his way of not following our SM. I fully understand that he is the figure of authority when our SM isn't there, but our previous SL never went against our SM, ever. She would tell us something and we would ask her if we could go against our SM's way to favor hers (our previous SL's) but she would always tell us to always favor our SMs way as she is superior to herself or would ask her herself in a very adequate way, our current one? 100% sure he doesn't tell her half the things he makes us change/says about her rules. Now I am afraid he is going to think I just have it out for him because he "scolded" me and don't want to report him. I loved coming in everyday, but now I am always nervous and uncomfortable while working and no longer feel my store as a safe space for baristas, and appearantly that is the situation for at least 5 of the morning baristas (which I heard them say myself). What should I do as a barista in this situation?