I learned this the hard way when a tequila-soaked me decided to dive onto what looked like a very soft and fluffly snow-covered headge. I neglected to remember the inside was made of tree. I went on to attempt to remove the hedge with a saw, and had to have several friends hold me down to stop my act of revenge.
You reminded me of the Douglas Adams quote about someone who looked "not merely as if he’d been pulled through a hedge backwards, but as if the hedge was being simultaneously pulled backwards through a combine harvester"
