A former friend of mine was married to a great gal; unfortunately, he had to put up with his wife's mother who was a very cranky and spiteful person.  In the morning when my buddy got up to go to work, his mother-in-law would sneak around a hallway corner and hiss at him, "If you don't treat my daughter right when I die I'll dig up from the grave and haunt you!"

When the poor guy would stop in for lunch, his mother-in-law would blurt out while hiding behind a drape, "If you don't treat my daughter right when I die, I'll dig up from the grave and haunt you.  Alas, in the evening while having a well-deserved cocktail, my friend's mother-in-law would pop up from behind the bar and say, "If you don't treat my daughter right when I die, I'll dig up from the grave and haunt you."

Well, I happened to bump into my buddy a month ago at the gas station and I asked him how his mother-in-law was feeling.  He said, "She isn't feeling anything; she died two months ago!"

I quickly asked him if he was worried about her ominous threat? 

He said, "No way!  I buried her face down; let her dig; I don't care!"