be aware of the white middle aged Spanish(?)guy wh...

be aware of the white middle aged Spanish(?)guy who's working at a service center in this hall. I came by to pay for my test today and his behavior was so rude the whole time. he treated me as If I was a little kid and didn't let me finish my sentences. he even hit the table with his hand aggressively at the end for no reasons. not sure If he only does this to young ppl like me,but this guy doesn't deserve to work here due to a lack of basic manners