Here is another random drinking conversation - so there I was, lying on the couch watching the discovery channel. One of the blue angel specials was on, I couldn't help but to notice that the token Marine had a khaki cover. Except that his was starched and pressed, while his Navy brethren had the little dimple in the back. What is the purpose behind the dimple? Talking around, I heard it was a tail hook thing, and if so, why do helo guys sport the dimple? Is that sort of like the SWO wearing brown shoes?