I've Got You Under My Skin/In a Jam/Junk in the Trunk - S1-E12
Continuity mistake: I've Got You Under My Skin: Lumpy breaks apart a piece of the shovel and takes the scarf from the knob on the wall, then he runs off-screen. In the next shot, he is shown running from the same exact spot, and the shelf and knobs are missing from the wall. (00:03:56)