Docs yelling at nurses....

I was a cop for 6 years and I am currently in nursing school. I had a doc yell at me when I was a cop for bring in a busted up drunk to the E.R.! I just gave him a look like I was going to tear his head off!! He apologized very quickly!! I have yet to have one yell at me in school I think partly because of the way that I carry myself. I have a bit of a no nonsense demanoer about me and it seems to work pretty good!