So glad this is not a True Story, but I did think of it at the gym and I do wear a wrap on my left knee when exercising (specifically when on the treadmill).
Explanation: the opposite of right can be either left (direction) or wrong (correction). But that does not mean left equals wrong.
Text:
Title: At the Gym
PT: You're wearing that brace on your wrong knee.
L: ... what???
PT: Because it's not on your right knee!!!
















