Ok I've got three I can think of.
1. We were staying at beach club, and had come in the international gateway to epcot. We were about 1/2 of the way between the entrance and the Uk, on the path there, while some in our party visited with sleeping beauty. A lady comes by with two boys, about 11-12, I figure her kids, walking from the UK towards the exit, and she is saying "No, we don't need a map, we are just going to walk right along this circle here and see all the countries in order. We do not need a map, it just makes a circle." About two minutes later, here they come back towards UK from the international gateway and she is saying "not another word, just don't say another word."
2. Actually this was at the
disney store, around christmas time. A little boy was telling his parents which of the toys he wanted and he, really loudly saud "I want a little Buzz and a big Woodie," and this lady across the store under her breath said "don't we all."
3. we were with some of our friends at future world in epcot, and we took a bathroom break. There were a group of school kids there, probably around 5th graders about 12 years old, and so the bathroom was really busy with all these boys and there was a bit of a wait in the common area around the sinks. From one of the stalls, one of the kids, trying to impress his friends, was doing a really amazing, and very loud, Austin Powers imitation of "Whose the boss of #2" with some incredible sound effects. The really funny part was that all of us adults (strangers) were looking at each other in the eye and biting our lips saying to ourselves "I will not laugh at 12-year-old boy potty humor, I will be a good example." I guess you had to see the faces of everybody trying not to laugh to get it.