Fortunately, I haven't dropped my K100D so far. I use the strap around my neck but support the lens with one of my hands when I walk around. I don't like it to dangle around and potentially receive scratches from shirt buttons.
Yeah, that's a bit crazy but I don't mind.
Here's another hazard and it actually happened to a forum member (I think it was a "she" but I cannot remember exactly where I read it): If you connect the camera with a USB cable to your laptop and then -- after a while -- pick up the laptop you can pull the camera from the table.
Bad call.
I do use the USB cable since then the transfer is much faster than with my stupid little SD-USB adapter but since I read this story, I always treat it as a potential risk situation.