Attack of the Giant Tuna Fish

Kids are so weird sometimes. Yesterday at lunch, my son suddenly turned to his grandma and said, "Grandma, you know how sometimes people are dressed up like a giant tuna fish walking around inside a building pretending to be a giant tuna fish? I wonder if they are really a person dressed up like a giant tuna fish or if they are really a giant tuna fish just walking around iinside a building."