Moop, Meep and Dan

Just as you're about to close the door to your shop three cats appear. "I'm called Moop," says the cat whose head pokes lazily out of a small backpack, "these are my companions, Meep, and Dan." Meep with his monotone voice speaks, "Have you got any free food?" Meanwhile, Dan just licks her own paw quietly as the most normal white cat you ever saw. She's as mean as any cat, but her clean fur would never show otherwise. A cat's a cat, after all. Now they are before you, inconveniently at days end.