Dropped my K20d from over my head as it fell off of a tripod onto a ceramic floor.
Blew my sigma 105 macro apart, nocked out the focus screen and shims from the K20d onto the floor. Put back together the k20d and had to re shim the catzeye focus screen for whatever miss alignment I caused and never was able to correct AF for what ever I did to the body.
Now it was debatable if I had made sure the quick release was checked before I swung the tripod over my shoulder as the K5 was just released the week before, my subconscious my have played a role in the accident
I was kind of pissed as the sigma macro was not very old but then again I picked up a DFA 100 2.8 that was now available
and again maybe my subconscious new this also