why are people surprise about that!!!!!!!!!!!!

Why recent I got some many thing can surprise people?!!!
first basketball
now piano teacher......

Is that hard to believe that I'm teaching piano?!!!!!!
I thought it should be common...........
why are your guy so surprise about
I can't be a teacher that teaching piano is it?

I know I don't like a teacher
even my student also say that
but
do your guy need to be that surprise???
haiz..............

I also don't I should laugh or cry about it..............