Hahah -- hey, now, I didn't say it couldn't be both!

[A little wry, though his voice softens as he continues.]

I get it, though. I'm pretty sure I could stay up all night with a project on accident and get an earful from someone else. It's not that you don't care about taking care of yourself or anything. Getting caught up in the moment of doing a good job is just pretty rewarding.