I saw a new arrival to the campground complete his hookup, gather the children, DW, and back packs and head out on a hiking trail. About two hours later I noticed water pouring out from under his screen door.
I was torn about my decision of trying to help or sticking my nose into somebody else's business and those ramifications. In the end, I walked over and turned off FW faucet at the pedestal.
Just before dark, the family returned. When they opened their camper door, water was clearly visible. I walked over and told the owner that I had seen water coming out of his camper and had turned off the faucet. He was thankful.
Apparently his toilet valve had stuck open and overflowed the bowl. Lesson learned: Turn off FW faucet when leaving the RV.
Lakeside