Because the supply of wood scraps they get to chew on are endless!
In the chimey prep project for the wood stove, I needed to verify the gap between the chimney and floor. While doing so, I came across this little bit of plywood that was in the way. Not only did this provide an opportunity to use my reciprocating saw again, but Scully now could be put to work as a splinter making machine. That little piece took about 5 minutes to be turned into a pile of worthlessness. And yes, there's a little piece stuck to her nose.