Pittsburgh - Where Nouns Turn Into Verbs

I don't drive to downtown Pittsburgh that often. And I apparently don't pay much attention to the signs. But I'm going to change that - today I discovered this "Don't Gridlock Please" sign at the corner of 4th and Grant. It makes me want to turn other nouns into verbs. I'm thinking that "Don't Fender Bender" and "Do Courtesy" would be good candidates. But don't put up too many of them. It'll be too much trouble when they need worshed.