Mr M: Dad, do you want a Sprite?
Me: No. That's ok.
Mr M: Dad. You can't just drink water all the time.
Me: Why not?
Mr M: Because if you drink too much water, then you'll get healthy and more healthy. And then you'll get sick.
Me: I think you've got it backwards there dude.
Mr M: No I don't. If you get too healthy your body gets sick.
I wasn't aware it worked that way. I might need to go read up on the immune response.