A couple of weeks ago I flew my 8 year old grandson down to drop him off with his dad and other grandparents. It was about an hour each way, and it allowed him to go to a friend's birthday party in the morning and go to the fair or whatever it was that evening. Good times. Last weekend I gave his 6 year old brother his ride. We flew out to KOFK for lunch; it's about a 45 minute trip each way. The trip out went well, as did lunch. Then we loaded up and headed home. About 10 miles out he says he wants to go back down. He wants to land. Hmm. Sorry, buddy, no place to land right here. Then I look over... just as his entire lunch slowly redecorates the pax seat, harness, and his clothes. Awesome. Turned around, landed back at OFK and spent half an hour or so cleaning up him and the airplane enough to get back home. Not to get too descriptive, but thank God for the absorbency of French fries. There was a hospital barf bag not more than six inches from him that would have saved him and me both a whole lot of unpleasantness. So why didn't he use it? Because some dummy got complacent and didn't tell him it was there, or how and when to use it. I've flown him and his brother before, their little cousins, and dozens of Young Eagles as well as numerous non-pilot adults. Nobody's ever barfed before, and it wasn't a particularly bumpy flight. Just a 6-year-old who sometimes gets motion sickness, which I didn't know. And why didn't I know that? Because I hadn't asked. Duh. Lesson learned!! Never again. Everyone gets the full pax brief now. Here's how to unbuckle, here's when to unbuckle and when not to, here's the barf bags, here's when (BEFORE you need it!!) and how to use it. And everyone gets asked if they ever get motion sickness... ever. De-barfing the inside of a plane is not something I ever want to do again.