In the exotic pets section of your local pet store, you saw a shelf with ten cardboard packages printed with stylized images of various creatures and the words "Dr. Wondertainment's Custom-Pets™!”, each containing six eggs in separate airtight compartments and a short instruction leaflet that read as follows:

“Hey kids! Your parents aren’t letting you get a dog or cat? Don’t fret, but a Dr. Wondertainment Custom-Pet! A Dr. Wondertainment Custom-Pet is far superior to an ordinary and boring cat or dog due to their original Adapto-Eggs packaging, a Dr. Wondertainment invention! Just leave your Custom-Pet Adapto-Eggs around the house and when they hatch they’ll fit right in. Perfect for apartments! To get your very own Custom-Pets is easy, kids! Just put an egg in your house and break the plastic seal to give your new pet some air so it can hatch. Your new pet will be perfect for where you live, wherever you live! If your new Custom-Pet seems lonely, just add another Adapto-Egg and get him a new friend! Dr. Wondertainment is not responsible for injuries or death caused by this or any other product. Wondertainment Custom-Pets are shipped out pre-fixed!”