I vaguely remember a commercial from a long time ago. In it, a boy is explaining to a girl that everything around him a prop and he demonstrates that some realistic-looking items are props. In a twist, the girl he is explaining this to turns out to be a prop that someone else carries away when the boy is distracted. The commercial ends with the boy noticing that the girl is gone and calling her name. I forgot what the commercial was for but it is memorable for being funny. I can't google that commercial now or find it.