Shoes on your plow.
![shocked shocked](/images/graemlins/default/shocked.gif)
Plow jockeys up here never replace the shoes because they wear or break off.
Had a contract with a big outfit and told them, if your plow ain't wearing shoes, don't bother. They never listened and made a mess.
Worst part was, is that they would come over and wreck stuff with only a couple inches on the ground that would naturally melt before noon, and send the bill!
We got our own snow removal stuff after that.