The downstairs neighbors' three-and-a-half-year-old has an orange balloon with black fur-like stripes. "What is that?" I ask. He grins, and holds it out for inspection.
"It's a tiger -- no, wait -- it's a balloon! Wait -- which is it?" He looks at his mom ("what a loon! I love it!") and laughs, and she shrugs ("I dunno -- maybe you'd better hang out with him and find out.").