I have a friend whose son did the same. He used a weather balloon and put it inside a junk van that was being scrapped. They found the hood a 1/4 mile from the crater. There were 911 calls for that, too. It was a prank.
No harm then? No foul?
hood ...found 1/4 mile away ... where did the glass go? It sounds very dangerous for being classified as a prank. It goes without saying then, that lucky no one was hurt?