Reminds me of my own friendly neighbors at Pismo Beach story. Years ago, a friends family and mine were just sitting around the campfire at night making Smores and drinking beer. Two guys from next door came over and asked if my buddy and I would like to go for a ride on their pair of sandrails. Having several beers under our belts, we gladly accepted, no questions asked. Several hours later, after breathing in and eating several pounds of sand, our rides finally came to an end. Although suffering from the rough, sand blasted ride, we feinged being greatful and offered our new friends a beer. During the ensueing conversation, we learned that we were invited as balast. It seems that when a sandrail gets airborn, it won't come down flat unless their is a weight in the passenger seat equal to the drivers weight.