Kids say the darndest things:

I was asked to give a presentation to a pre-school class of 4-year olds. The theme that week was "Let's go to Disney!" and that day they were flying to Disneyland dressed as their favorite character or superhero. (It was awesome!)

So, I spoke to the kids about things they need to remember when they're on the plane, (Wear seatbelts, listen to flight attendants. I explained oxygen mask and safety card, etc.).

When I was finished, I asked the class, "Okay, so what is the MOST important thing you need to remember when you're on a plane?"
A kid in the very back yelled out, "DON'T SMOKE!"