When my kids do things that are embarrassing, it's sometimes embarrassing because of my immaturity rather than theirs. Last night at church services, there was an announcement about someone's uncle dying. And it was very quiet and everyone had that "what a tragedy" look on their face. And my daughter apparently recognized this as an opportunity to laugh extremely loudly at nothing. So the guy announcing it said something to the effect of "let's keep the family in mind this week." And in the silence that followed, there was a resounding "HA-HA!" from my one year-old.
And she didn't know what she was doing. She didn't understand the announcement or know what the quietness was about. In all honesty, she probably tooted or something and thought that was funny. But the reason it was embarrassing is because it made my wife and I laugh. And an adult laughing during a death announcement is downright tactless.
But it was one of those times where you know you're not supposed to laugh and you're absolutely horrified that you're laughing, but that just makes it all the more hilarious. Luckily we were able to laugh quietly so as not to break the somber mood. But it was still embarrassing.