In response. Yes.
Watermelon is a stool softner. The flesh of the watermelon consists of water, plant sugars, and fiber. The abundant content of water and fibrous watermelon flesh provides enough softening power to soften stool. Eating at least half a big watermelon or an entire watermelon at one sitting will bring on “runny stomach”.
Drinking half a gallon to a gallon of cheap tomato juice, cheap orange juice without adding sugar, a whole gallon of cold skim milk, will also bring on “runny stomach.”