An old man goes to the doctor for his yearly physical, his wife tagging along. When the doctor enters the examination room, he tells the old man, ´I need a urine sample, a stool sample and a sperm sample.´

The old man, being hard of hearing, looks at his wife and yells: ´WHAT?´

´What did he say? What´s he want?´

His wife yells back, ´He needs your underwear.´