What happens next?

A middle aged man is shoveling snow on a sidewalk while a medium sized brown dog chases the shovel. the man

Select from the following.
[I] continues shoveling on the sidewalk blowing snow and smiling.
[II] tosses the snow in a pile and picks it up and chucks it onto the sidewalk as the dog walks around the pile and picks up more snow.
[III] throws the snow and turns the other way to repeat the shoveling while the dog continues to chase the shovel.
[IV] stops pushing the snow back and sets it on the sidewalk.
[III]