Surprisingly, it's only happened to me twice in all of my many visits to Disney's theme parks. Both were at Disneyland California. Once on the Indiana Jones ride and once on Rise of the Resistance on our last trip in February. On ROTR, the ride stopped about 75% of the way through, so we were...
We were watching Fantasmic! at Disneyland back in February, of course with tons of children around. There was this young girl, probably early twenties, behind us that would drop the f-bomb nearly every time there was something that wowed her. She was obviously very impressed with the show...