Tell him that you are "right here, and can hear him just fine, he does not have to yell."

Really, it's completely ridiculous, he is no longer in elementary school and should be able to speak with you as an adult.

Every time I'm at work I get scared of my boss I have this feeling of nervousness.

I don't like him shouting at me.

my dad said man up he's only human like you. Why would you be scared stand up for yourself.

What shall I do? I'm 19