Here's what I saw: Barney lays down on the gurney/table/whatever in his silken jammies and robe. Quite the comfy patient, thank you very much.
Look over at Adam, he has layers of ill fitting clothing, and boots (or clunky shoes?) on!
Can't you just see Lang, humming along to the music "dooo duh dooo, duh dodododoooo, sew Mr. Left Leg on, yes indeedy. Put sock on Mr. Left Foot! Now, heeeeeeeere's your boooot!"