woman sits down next to a man on a train and notices that he has mashed potato in his ear. this bothers her but she doesn't say anthing. after a while she wispers, "excuse me sir, but did you know that you have mashed potato in your ear?" no answer so she repeats the question in a normal voice and still no answer. she then raised her voice to ask the same question. the man looks at her at says, "i'm sorry i can't hear you, i got mashed potato in my ear"