Samples
Two old people, a man and a woman, walk into a hospital. The doctor says to the old man "I'll need a urine sample, a faeces sample, and a blood sample". The old man says "What?"
So the doctor says it again. Once again the old man says "What?"
So the doctor yells it "I NEED A URINE SAMPLE, A FAECES SAMPLE AND A BLOOD SAMPLE!"
With that the old woman turns to the old man and yells "He needs a pair of your underwear!"