"Al Bundy" wrote:

Nobody should be on an
unstable ladder with a chainsaw. Everybody should be paying complete
attention including those on the ground. The dog should have been
penned during this work.

While I feel sorry for the husband in this case, I have to agree.
I can think of few things more boneheaded than simultaneously playing fetch
with a poorly trained large dog and being in the vicinity of a running
chainsaw....