Okay, so it could be about chest level. But, knee high is perfect for the yak (what did cdr rotor head call yak surfing? oh yeah, goat surfing)......besides, I'm not 18 anymore!
sidenote: when i was a puke in the navy, we referred to officers as zeros...Os...rotor head is no zero. it would have been my privilege to serve under a co like him.