I remember a comical video that was on youtube back in the day about a bottled water salesman shooting his commercial and demonstrating how refreshing the water is by claiming it derives from actual mountain springs. he is at the edge of a river or maybe a canoe (probably canoe). an older man wearing a bucket hat then proceeds to piss in the river much to the irate dismay of the salesman

this is most likely a satire but it could also be an ad though I doubt it lol