I grew up in Georgia. One hour south of Macon on Interstate 75 is Cordele, Georgia, the watermelon capitol of the world.
When I was a child, at the peak of the watermelon season you could go to the farmers' market and buy four large oblong (not round) watermelons for a dollar! They were great. The same for Georgia/South Carolina peaches, big baskets of large, I mean large, ripe, juicy peaches, ones you had to bite into over a sink so much juice gushed out, for about a dollar.
But I digress.
This video below narrated by someone who has an English accent, which tells you he knows nothing about watermelons, is heresy as far as I am concerned. Has any southerner who loves watermelon ever cut a watermelon the way this Englishman is suggesting? It is heresy! P.S. I like salt on my watermelon too!