My Kind Of Wave Height.
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.

