The biggest help was the "$200 fine" they have to pay if I need to fix their workstation. The boss liked the idea of not wasting company resources.
That's interesting. It would be interesting to study the affect of that fine on the habits/culture of the users and what lengths they might go to to avoid calling IT if something does go wrong.
I have a PC that has no AV software and I know it is completely safe. I never connect it to the internet!