Weird Geometry Teacher

I asked my new geometry teacher if I could go to the bathroom and he agreed, but when I was already in the hallway i was hearing "ah ah ah!" like if I was doing something wrong, he followed me to the bathroom and told me to piss in the sink because he was already using the toilet, after that I noticed he had a dog, we went outside and it was all dark like if it was night, and he told me that as a kid he always tried to find excuses to leave class, we stayed outside for more than an hour, then the day after I was at the park in Duca degli Abruzzi and Oakley, a childhood friend gave me a small bouncy golf ball, there were girls around playing some games, and I continued to ask him if he could come next to me to talk but he didn't.