It's rude to move snow onto someone else's car.
Hector is shoveling snow from around his car after a heavy winter storm.
Hector wants to get the snow off of his shovel.
Hector carefully throws the snow onto the side of the road where it is out of everyone's way.
Hector throws the snow onto another car behind him, blocking the windshield.
The car owner sees Hector shoveling the snow responsibly and thanks him for being courteous.
The car owner sees Hector throwing snow on his car and challenges him to a fight.