I drove heavy equipment when I was younger for my dad. (Bulldozers, excavators, loaders).
I had a deal that I would remove all the snow from his company parking lot, in exchange for the use of the loader to make money clearing other people's parking lots.
One week, it snowed like crazy for 3 days. It was busy week for my dad's business so I worked 2 days straight clearing his lot for free.
When I was finally done, I went into the city looking for lots to clear. Problem was, it was around 6pm and all the businesses were closed. So, I started knocking on doors and clearing people's driveways.
Second driveway I cleared was a long one that was kinda steep. As I was backing back up the hill, the machine slipped and started sliding down the hill. The only thing I could do was drop the bucket. That dug into the flowerbed and caused the machine to swing 90 degrees, hitting the neighbours fence and knocked a section over. The machine wasn't moveable.
Because of its weight, I had to call a heavy duty wrecker instead of a normal tow truck. Cost me $300-400 to get the machine pulled up the hill.
I had to finish the driveway by shovel to get paid to mitigate my losses. Worked for almost 48 hours straight, only to lose a bunch of money.
That was the end of my snow clearing enterprise.