An elderly couple visits a doctor.
The doctor says to the old man,
“I’ll need a urine sample, a feces sample, and a blood sample.”
The old man says, “What?”
The doctor repeats himself.
Once again the old man says, “what?”
So the doctor yells it,
“I NEED A URINE SAMPLE, A FECES SAMPLE, AND A BLOOD SAMPLE!”
With that the old woman turns to the old man and says,
“He said needs a pair of your underwear!”