So, I live in Ohio where the winters can be long. But like any fanatic golfer I insist on practicing my swing somewhere. The other night while in my garage got a bit steep on a 6 iron follow through and hit the holy crap out of my garage door track. Nothing broke this time but I am guilty of destroying some light fixtures in my past, nothing $30/$40 couldn't fix. How about anyone one else? What's the most costly damage done do to golfing indoors.