unravel update!

Just this evening I watched a Disney cartoon, I think it was called "On Ice," it starred Mickey, Donald, Goofy, etc. Anyway, Donald begins to blow away, which is apparently a major hazard if you're animated, and Mickey grabs the edge of his sweater. It unravels, but only the body: the sleeves and neckline remain in tact. Okay, this could happen. It might not be as easy as it looks on T.V, but I think if the sweater were knitted in the round, it could work. I've never tried to unravel a sweater, though. Anyone with actual sweater unraveling experience, please feel free to comment.