David called his mother in Florida. He said to his mother, "Ma, how are you doing?" She said, "Oy, not too good. I've been very weak." David then asked, "Why are you so weak?" She said, "Because I haven't eaten in 38 days." David then asked, "Ma, how come you haven't eaten in 38 days.?" She said, "Because I didn't want my mouth to be filled with food when you called."