Me: Jackson, you've totally got this.
Jackson: I don't know, I can't. It's too deep.
Me: Look, I'll do it with you. *rips off shorts and stands at the edge of the dock*
Jackson: I've done this before three times! Why can't I do it now? You go first.
Me: *jumps in, treads water* Ok, your turn.
Jackson: Nnn...
Me: You've been in the water before, you know you can do this.
Jackson: I know.
Me: Ok, on the count of three, you're gonna scream "This is Sparta" and then jump in and swim the test with me, ok?
Jackson: Ok.
Me: One, two, three!
Jackson: THIS... IS... SPARTAAAAAAA! *runs and jumps*