An old man goes to an Audiologist for his hearing problem, and the Audiologist gives him a nice powerful hearing aid.
A month later the old man goes back for check up. The Audiologist asks him how is the hearing now. He says it's marvellous. So your family must be very pleased says the Audiologist.
Old man answers: Haven't told the family about my hearing aid. I just sit and listen to everyone's conversation. In the last month I have changed my WILL five times.