Well, like everyone else in this thread so far, I can't answer your question either. However, I can say that the abuse my K-5 has survived has given me far more faith in its weather sealing than I really need. Short of liquid submersion, I will most likely give up before the K-5 does.
I've taken mine into torrential rain for hours and day-long hikes in the rain, through sand, dirt and dust, paintballing, snowshoeing, high heat, etc. During all of this abuse I didn't hide the camera in a bag or under my jacket, it was out and ready for use at all times, exposed.
The few people I've shot with that owned Canon, Nikon or otherwise don't put their cameras through this for one reason or another. Maybe I'm just crazy, or maybe I just trust that my K-5 is built well.