I've used a DogFather to cut a couple peep holes in an old exterior door.
I've also used a Dumpster Mutt to cut up the sidewall on a tire as well as punch holes in a truck's oilpan.
Boredom can be fun! <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />
Oh, I also use the DF to chop wood. <img src="/ubbthreads/images/graemlins/tongue.gif" alt="" />