Ed's Pet Boutique (misspelled as Ed's Pet Boutick) was a scam in "Flea-Bitten Ed" when the Eds clean Rolf's animals, such as Wilfred and Gertrude, for money. However, after the Eds found out that Ed was allergic to rabbits, the scam was temporarily abandoned so the Eds could find a cure for Ed's problem. It had a chicken shower, 2 cages for the rabbits, and a sprinkler inside.
The status of the scam as a failure or a success is not to be easily assumed. It is not shown if the Eds were paid before the scam started, or if they were to be paid upon the return of the animals. Due to the episode's conclusion having nothing to do with the original scam, the scam's status is unknown. Assuming that the animals were not returned (and that technically not all of them were cleaned), they most likely failed. However, this is up for debate.
The rabbits escaped from the boutique and multiplied in great numbers. The rabbits were able to completely overflow the Cul-de-Sac, raining from the sky and trapping all the kids in a sea of rabbits. The number of rabbits was great enough to fill the entire Cul-de-Sac.