Dunno that I'd call it a "hobby." They're super into it. Watched 'em spend a week in the forest on a spirit quest once to do...somethin'. Refine their spirits, I guess. They made some pretty serious armor from scratch for it too.

[Teachers like high school teachers or teachers like Splinter? Casey has no respect for one and lots of respect for the other. Even if that one is strict and does grab his ear a lot.] But he's your kid, right? They can't stop you from hangin' with him. Sounds like he wants you to, so I don't see why you wouldn't.