When a woman called 000 complaining of difficulty breathing, her brother, Glenn, and his partner—both paramedics—rushed to her home. Glenn 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.

“58,” answered the patient, eyeing the beeping device on her finger. “What does that do?”

“It’s a lie detector,” said Glenn with a straight face. “Now, what did you say your age was?”

“67,” answered the woman sheepishly.