Several memorable drops in my time.
1. When I was working as a photographer for a large heavy industrial plant, I was photographing the installation of a gigantic lathe in a machine shop. I was on a crane track getting a few overhead pics. Nikon F/Nikkor 35mm f/2.8 on a tripod. I was just wrapping up, unscrewing my camera from the tripod, the crane moved which gave me a start. I grabbed the tripod not knowing the camera was hanging on by a thread. Camera fell off the crane track onto a piece rolled up conveyor belting then slipped onto the concrete floor.
Camera and lens looks a bit second hand, but usable. I still have said camera and lens.
2. Working for a newspaper before digital. A hang glider went over a cliff, I was assigned to cover it. Police rescue already on the scene, patient about 30 meters below. I was traversing a slippery path, slipped and dropped my Nikon F4/ 80-200mm f/2.8. Camera and lens slid the rest of the way coming to rest about 10 metres from the patient. I kind of crawled, then ran back to the car, grabbed my Nikon F90X and managed to get the patient being hauled cliff top by police rescue. My F4 was sitting on the stretcher between the patient's legs being also hauled up. Nikon a right off, patient only minor injuries.
3. There is a Nikon F4 at the bottom of the Pacific Ocean about five or six kilometres off the New South Wales coast