In Trouble Again

I was none too happy with Rowdy tonight.  I had to give him his weekly bath a day early, because he was rolling around in some piece of dead animal.  I could not identify what it was he was rolling in, as there were no legs, head or tail but it may have been either a rat or mole.  I'm not even sure how it got into the yard for him to roll in it.  He may have caught it himself.