Since they work together day in and day out, their usual preference of a 3-foot distance between guys has been cut drastically to about 6-inches. But that barrier is still there, and they aren't shy about calling someone out on a "close call" or any sort of contact.
The best example, though, was after their "beard month", Rob came in clean shaven and said, "Feel how smooth!" Since this is fairly out of character for Rob, Wes decided to go for it. But as he closed the distance to Rob's cheek, his hand started shaking. The closer he got to making contact, Rob started pulling away.
Apparently they can't handle it. But the trying and then retelling is certainly entertaining.
I wish there was a way to record these conversations, because they are certainly a lot funnier as you witness them than by sitting down and typing them out.