Yet the other night, while I made dinner, they tore the couch apart and totally re-enacted the story! Danny made a couch cushion "bridge" between couch and ottoman, which Isaac repeatedly crawled under. I came to see what was going on when I heard Danny saying, "No little babies under my bridge!! I eat little babies who go under my bridge!!", and Isaac cracking up and crawling/running away.
Uh-oh, and now Daddy is going to be mad that they were jumping all over the couch. Unfortunately, necessity sometimes trumps house rules (like when dinner is going and the kids are clinging to me and whining, and Daddy is getting ready for work [in peace!] so I suggest, "Go make couch forts!!" Yes, necessity...)