I saw a ton of unprofessionalism while I was at the regionals. Some of the stuff I have seen still amazes me. Someone showing up with white pants on because he forgot to get his pants from the dry cleaner? FO jumping up and down on the moving walkway. Guys sitting in wheel chairs rolling them selves around the terminal.
It's embarrassing. Now that is not to say that there aren't professionals at the regionals... there are a lot. But there seems to be a lot of immaturity as well.
I've seen a couple things at the majors, but not nearly the type stuff at the regionals. It all boils down to hiring standards. There are none at the regionals.