How good are your knees?

Last week, I spotted this Ford Flex on the Deer Valley Resort parking lot, sporting a “Badneez” license plate and started to wonder about the condition of its owner's mid-leg joints. Perhaps he or she had a full-blown artificial knee, or already had two ACL operations or just portion of the meniscus cut.

Perhaps there was no injury at all, but the knee stubbornly refused to bend beyond 120 degree or made a loud, objectionable noise when flexed too fast. It might also have been that the individual in question had perfectly good functioning knees, but felt that those were unsightly when wearing a mini-skirt, a kilt or a pair of shorts. So that leaves me with the existential question of the day: Who will ever know how bad these anonymous knees were?