can a security guard at my high school do this?

At my school I was in the stall for around ten minutes I mostly like staying there during lunch but This guard came in and pounded on the door like a gorilla knocking kn the door then he told me to leave I told him I'm leaving I opened the stall door he was standing near the exit and he said what were you doing standing there for ten minutes I told him I didn't have friends he said go to the library then before he left he said like it was an order he said wash your hands not even a please I didn't do anything wrong I wasn't doing anything illegal and this isn't the first time he's knocked on the door like that but it was the first time he told me to leave he was so rude I was like yes sir then I said sorry sir honestly people today are so rude to those who aren't anyways any reply thnks so much