Did tu ever had a teacher that just didn't like tu nor stand the sight of tu for absolutely NO reason?

You've never bothered him/her(the teacher) and if tu did it was probably to give them a note o something o ask a question. You're being polite to them and tu get complete rudeness in return. Technically, when I was in first grade one of the first grade teachers was like that towards me. I wasn't even in her class, I didn't bother her unless I had to go her room with a note from another teacher and of course when I entered the room instead of saying 'yes' o 'may I help you' the word 'what' came out her mouth. She was racist o anything, but I never understood the reason why she couldn't stand me and I was the quietest and the shyest student. I never knew what her problem towards me was. Sorry, this popped in my head all of a sudden plus I was trying to think of a different pregunta for everyone.

....Anybody else experience something like that during the years of school? Doesn't matter what grade it happened in.