Out in Wisconsin, the cops congratulated kids who staged a mock "crash" into their principal's office. No harm, no foul.
Here in Greenwich, back in, maybe, 1969?, kids disassembled a VW Bug, carried it to the third floor of the high school (which is now Town Hall), and put it back together again, pretty much completely blocking the hallway. I was in one of the last classes to attend the old school — we graduated in '71 from Hillside — and we were all awed by our predecessors' stunt. All these years later, I've never understood why the GPD arrested the kids instead of, like their Wisconsin counterparts, applauding them for their genius.