Ten kittens in need of cat food and beds have been "dumped" outside a pet shop in Lytchett Minster, Dorset.
The cats were discovered by Danny Brown, the owner of 3 Oaks Animal Kabin shop, reports the Bournemouth Echo.
Not knowing what to do with the kittens, Mr Brown called the RSPCA, which is now appealing for any information on the dumped cats.
RSPCA inspector Graham Hammond told the news provider: "My initial reaction was 'not again'.
"We get so many unwanted cats at the RSPCA and as we rely on donations, it is stretching our resources so much. There are three points that need to be understood by pet-owners."
Mr Brown is now selling the kittens from his shop for £30. He explained that all the cats are clean and in good health, adding that there are several different colours, "so something for everyone".
The RSPCA estimates that there are eight million cats in the UK.