An unfortunate apartment-dweller thought she had acquired a cool new doormat when her neighbors moved away. Instead, she discovered, she'd acquired a patch of dog urine.

Redditor Ellieohsnap posted a photo of the offending "doormat" to Reddit on Saturday, along with a note from her otherneighbors — the ones who filled her in on the truth.

"The grass 'door mat' you took from our neighbors' 'for free' sale is actually a dog pee pad," the note reads. "A dog used it for a year as its potty spot. Thought you should know."

Oh... oh gosh. Oh no. A thousand times no.

Never trust a "free" sale, friends.

BONUS: Please behold the Pikapigeon

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