When Rob is away on a business trip, Chris finds a temporary co-host named Rick on Craigslist. Then, door-to-door salesman Willy Himan shows up (uninvited) to try and sell his wares. 

On Step by Step, J.T. becomes a salesman himself while washing Tauruses at a used car lot. And obviously the Scott Stapp Art of Anarchy song "1,000 Degrees" was written about that episode too.