My DS4 constantly invents videos about an imaginary place and everything that lives there, both imaginary and real creatures. It's so ingrained for him that he talks about it as if it's real to strangers, though if you ask him straight out he'd say it was pretend. You can't ask him to get to a stopping place, you have to ask him to "pause". Sometimes he's a character also, but usually he's just the narrator. DH does a better job than I do of immersing into the world, I have trouble keeping all the facts of it straight... I want to care, I enjoy hearing all the storylines, but to actually participate more than a few minutes I find hard -- maybe I'm just not that imaginative.

Polly