My favorite guest story happened at Disney. I was working the Jungle Cruise and some guy was videotaping his family while they were walking back and forth in our maze-like queue. When he got up to the loading area he kept on walking, and ended up right in the lagoon. He didn't look up and his family did nothing to stop him.
Of course, guest in compromising positions were pretty commonplace in the resorts. I chased naked folks out of the pools/jacuzzi. Our security folks found some teenagers studying anatomy in a starwell in the middle of the night. When he stumbled on them the guy was scared out of his mind and was begging that they not tell her father...who had agreed to bring him along on the family vacation.
When I first got to the resort an older (70+) woman was assigned to help train me. She took me into rooms and showed me what to look for (things that might be out of place, dirty areas that needed attention, etc). One day we were in an empty room in the middle of the afternoon (guest are usually in the park then) and a couple was very involved in what they were up to in the next room. Now, this was the old, old wings of Breakers so the sound was hardly even muted. I wanted to get out of there right away but this trainer of mine just kept on going not even acknowledging the "circus" taking place next door.
After several uncomfortable minutes for me we were heading out into the hall and she looked at me and said, "get use to it...you will see and hear it all in this job."
"You can dream, create, design and build the most wonderful place in the world...but it requires people to make the dreams a reality."
-Walt Disney