The Hobo Mother-In-Law

Well I think I finally figured it out The answer I've wanted to know What makes her mother act like that And her five o'clock shadow grow You see, I have always wondered Why she takes her bath in the yard The bird bath is her bathtub While my wife is standing guard She drinks her meals on a bench outside From a plain brown paper bag Her clothes are always tattered and torn And she looks like a crazy old hag She always wears those army boots And her car is a shopping cart She talks of all the places she's been And she calls Graffiti, art Did I mention she plays harmonica? Like that Boxcar Willie guy She plays, "Nobody knows the troubles" As a tear leaks from her eye And when she goes on her vacations She'll never take a plane She says she's just more comfortable In the boxcar of a train So, I finally know all the answers And I'll share them with you all I want you to know that my wife's mom Is the Hobo mother-in-law