You shouldn't put snow on someone else's car.
Parker often has snowball fights with his neighbor, Matthew as a form of friendly competition.
Parker wants to take their rivalry to the next level.
Parker gets a snowball gun and surprises Matthew with it as he walks out of his house.
Parker dumps a huge pile of snow onto the roof of Matthew's car before he has to leave for work.
Matthew gives up and Parker wins the rivalry.
As Matthew is driving to work, the pile of snow falls onto his windshield which obstructs his view and ends up causing an accident.