So a few weeks ago I was trying out a new system of attaching my 400f5.6 to the shoulder strap of my pack.
It was extremely convenient. Too convenient, and when the last thing in the world I expected to happen, happened (I tripped on my own snowshoes), the lens came out of the rigging and fell a few feet to the ground (only a few inches of snow, unfortunately).
My new rigging uses a clip that must be actuated to release the lens, so I don't have to worry about dropping my lens anymore (I'm using a quickdraw, a pair of professional grade climbing carabiners attached to each other with some webbing, and one clip thoroughly attached to the webbing on the shoulder strap. I tied a good loop of paracord to the lens-plate for the other end).
The focusing system seems fine, if there are any problems it's too minor for an f5.6 lens to care, but I'm wondering if anyone else has had a similar experience and seen further consequences later on. Or if they have an estimate for how much it cost to fix.
The other half of the point of this post is just to re-iterate that Murphy is real, and he is out to get you.