Fruit Tree of Professionalism...

Salesman; "... I don't see what's wrong with it the way I wrote it!"

Me; "I can see that, but it baffles me that we have to go over this again."

Salesman; "I write like I talk and I'm just going to be straight forward no matter what."

Me; "All I'm saying is when you write, 'WTF is up with this guy.' in an email to your boss, you have to expect a call sooner or later." It's just short of the low hanging fruit I like to think of as professionalism."