[bigth]

Why are you harassing and insulting them in the first place? Nobody taught you how to speak politely?

[BenjiWiebe]

The GP said to tell the employee to get off his butt, which is usually interpreted as rude.

[hoppyhoppy2]

They didn't mean you should literally say those exact words. You could say something like "Would you mind checking it for me yourself? I'd really appreciate it."