"It's not waterproof, but it is water resistant. I've already been in the spa, and now I'm going to take all day to dry." Granted he could just take his armor off or sit in a bowl of rice, but he's not going to do either of those things so instead he's going to whine about it.

"The inside cannot though, where the wiring is." He's never actually gotten any of that wet but he assumes he'd short circuit and die. Not going to tempt that.