Jibini & Tana both love watermelon, cantelope, honeydew….and virtually every other type of fruit or veggie I've ever given them. With the exception of hot peppers...however, Chloe, my rescue mutt (possible B mix) eats everything INCLUDING hot peppers. Loves 'em.
Back when we drove a truck & only had Jibini with us, we used to haul a LOT of produce, esp watermelon. Once we picked up a load from a family owned watermelon farm in Oklahoma. They were very rural, isolated, down at the end of a narrow dirt road. No danger, so I asked if I could let Jibini run around. We were parked out back, far from the road, near the dock area where they sort & package the watermelons in the big cardboard bulk bins (like the ones you see in grocery stores). They said it no problem.
Part of the watermelon "sorting" process at the farm is to determine by weight/feel and "thump" which watermelons are good for market and which ones aren't. A certain percentage of the melons will have too much water content (will be "split" on the inside and mealy) or will be overripe, blemished, damaged or otherwise ruined for human consumption. Such melons often end up on the ground, smashed open, right around the immediate sorting/packaging area to be cleaned up later.
We'd arrived right after a full load had been sorted....and so, there were NUMEROUS discarded melons scattered all over the ground by the sorting platform. Jibini made a beeline for them. The farmer's children were all there....and they got the BIGGEST kick out of watching Jibini chow down on the melons as if he'd found a pile of steak!! Even the farmer & his wife were suprised....she said she'd known ONE dog years ago, a Lab, who occasionally liked a watermelon snack but nobody at the farm had ever seen a dog eat watermelon with such enthusiasm.
I'd never let him eat quite so much in one sitting before- but he didn't end up having any ill effects even though he ate so much that his stomach looked like he'd SWALLOWED a whole melon All that happened was a BIG BIG pee a few hours later, and a rather hefty, bulky, kinda pinkish-hued BM the following morning.
Usually if I eat half of a cantelope or sugar baby watermelon, I'll let him "clean out" the inside when I'm done. I don't really encourage him to eat the rind but that's just because I don't need him passing THAT much "fiber" later on LOL.
Here's a photo of him enjoying the leftovers from one of my cantelope breakfasts: