I do agree that it is impressive the kind of abuse a Nikon Pro body can take. I certainly wouldn't try any of that with my D4. I've never worried about a bit of rain though.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery