Piss anyone off in school?

Well...........

I photobomb the girls in my classroom when they take selfie and the girls are angry but luckily they didn't hurt me. And I rickrolled one of my classmates in my chat using this:

How you ask?

During math class while I'm bored and the teacher is not there, I saw the girls are about to take selfie (which most girls like except me cause I'm not that kind of girl) I photobomb by standing behind them when the photo is taken.

And I rickrolled one of my classmates in Messager and one of them said why?