In rounds this morning:
My boss: "Wait everybody! This is important. How would you survive on a desert island with nothing but a Bic pen?"
Overnight doctor: "Hey, can we move along?"
My boss: "No. How would you survive?"
(silence)
My boss: "You would use the shaft of the pen to funnel salt water into your butthole! Your colon would absorb the water, but not the sodium or the chloride. You could drink without getting salt poisoning. Cool, huh?"