One Paramedic placed a sensor on her finger to measure her pulse and blood oxygen. Then he began to gather her information.
"What's your age?" he asked.
"Fifty-eight" answered the patient, eyeing the beeping device on her finger. "What does that do?"
"It's a lie detector" said the Paramedic with a straight face. "Now, what did you say your age was?"
Spoiler:
