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
My d4 got knocked off my drafting table last night and put a dent in my hardwood floor. I think maybe the camera landed on the edge of the L bracket, my thought was ^%$#@# ha ha!!!!
Anyway I took it outside and shot several frames to discover everything seems to be working ok. It knocked some dust loss inside the camera with several dust bunnies on the mirror and focusing screen. I just used a hand blower and a sensor brush and its good as new.
The old d4 is one heck of a camera, its a tough son of a gun.
I made the stupid mistake of leaving my D90s, 70-300, and 28-105 on the roof of my car one day. I drove away and watched it all tumble onto the pavement at about 30mph in my rear view mirror. The body was banged up, cracked pretty good. The lenses looked like hell too. A quick twist on the barrel of the 70-300 and worked fine the 28-105 and body went to Nikon. The lens cost $150 to fix like new but the camera was sent back as "unrepairable". It works great to this day with no loss of function. It doesn't display all of the info in the viewfinder anymore but that's all of the problems I've had with it.
I recently dropped my 18-55VR from my waist and it's complete garbage. Ha!