Watermelon; With or Without Salt?

So the other day I realized that my son doesn't like his watermelon with salt. It's summer so of course it's watermelon time. I cut up some watermelon in chunks and served me and my son some. I put some salt on mine and went to sprinkle some on his when he stopped and said "What the heck are you doing?'

Here's the thing; my mom always served me watermelon when I was a kid with salt so I kind of guessed everyone ate it that way.

Guess not. I do you eat your watermelon with or without salt?