While I was growing up my brother, eight years older than me, would sometimes buy me gifts that he especially liked, for Christmas when he had some extra money. Whether it was a box kite or remote control car, he would always demonstrate the proper way to use it without giving me an opportunity to try it first. He would set it up, try it out, and then promptly break it before I even had a chance to try it out myself.
One Christmas when I was in elementary school, I decided to change this pattern. He gave me a gift of a plastic soldier on a gas-powered flying hovercraft platform that came with a remote control. He set everything up, fueled it and just before he launched it, I grabbed the remote control and immediately sent it straight up as high as it would go. While he watched, his mouth open in shock, I decidedly powered it straight down into the alley asphalt until it hit with a terrific explosion. He remained standing with his mouth agape; he turned and looked down at me shaking his head in stunned disbelief. I smiled, and walked away delighted. This was the last Christmas gift he ever bought me, and the best Christmas I ever had as a child.