Thanks to the snowplow drivers in our area we spent hours yesterday picking rocks out of the yard. My kids were complaining the whole time. I even heard my son say he felt like he was on prison duty! I had to laugh.
It could be worst, one of our neighbors is very bad about cutting his lawn and we have had two windows broken from flying rocks. At least they did not make it to your windows!
You are right! I would have been furious if one of my kids mowed over the rocks and put it through my window. That is exactly the reason I told them we were picking them up.