Wondering...

By nature, I am not an OCD type person. I don't fret over having things in exact order, or the need to wash multiple times a day (or after an activity). I am not driven by a schedule and need to map everything out. But when it snows and I use a snow blower, I have the need to removed snow from walks and driveways and that I have a clean straight edge on the sides. So much that I will make several extra passes to accomplish this. Why just in snow removal? Interesting.....