It seems my daughter is a tumbler and a runner.
She turns with a squeal and tries to crawl away when anyone enters the room. She will start to crawl out of the room, stop and look back at me, and if I flinch she will squeal and pick up speed.
Her favorite game right now is to stand up on the couch when I'm sitting next to her on my computer and purposely fall backward. She really loves it when someone suddenly looks her way and she can combine the running away with the launching backward into the cushions.
I do not look forward to shopping with her when she can really run away from me...I think there is an extra dog leash around here somewhere...