In our apartment building, the shared cat food bowl is always empty early. Two neighbors, Anna and John, wanted to know why. They first asked some tenants nearby. "Do you take food from the bowl?" Anna asked Mrs. Green. "No, I don’t," Mrs. Green said.

Next, they checked the security videos from the hallway. The old camera showed a small figure near the bowl late at night. "Look, the cat from apartment 3B is here every night," John said. The cat is small and black.

Anna and John then spoke with the owner of the black cat. "Your cat comes to the food bowl often," Anna said. The owner smiled and said, "Yes, she loves that food!"

They learned the cat was the main one eating the food. Everyone in the building can now watch the bowl and make sure the pets have enough food. This helps the neighbors care better for their pets together.