A man called his mother in Florida. "Mom, how are ...

A man called his mother in Florida. "Mom, how are you?""Not too good," said the mother. "I`ve been very weak."The son said, "Why are you so weak?"She said, "Because I haven`t eaten in 38 days."The man said, "That`s terrible. Why haven`t you eaten in 38 days?"The mother answers, "Because I didn`t want my mouth to be filled with food if you should call."