> Welcome to try if you can find him. You don't get raised by a combination of international ninjas and Batman and not get pretty good at hiding.
 
Hey, Jason used to use those hiding spots to sneak off for a quick smoke. You can't hide from your older brothers in Wayne Manor!
 
> I'm not sure piquing his interest and warranting a Batarang are mutually exclusive since we've established that he booby-traps Wayne Manor for fun. Or maybe just because he feels like a home without secret hidden deathtraps doesn't feel very home-y.

Well, really, what kind of a home doesn't have a minimum of several booby-traps and a convenient fire-pole entrance to a top secret bunker built behind a grandfather clock? No home that I'd be caught living in, that's what kind.