Attack of the Shag Carpet?

Shag, baby! Yeah! Snapped by Keith Thompson, one of the many baffled denizens of New York's Carrol Gardens, This fish smelling blob of what appears to be a rancid old shag rug appeared not long after a recent heavy rainfall. Another local swears he saw the thing move. What do we think? I'm betting on a nasty old rug tossed to the curb that got wet in the rain and might have moved because whatever is stinking inside was briefly alive.
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