When all I had was the film camera a co-worker had one of those gigantic telephoto lenses, you know the kind, 3 feet long, weighs 60lbs, and you carry it around in a large home made plywood box that looks kinda like a coffin. (It really was about 3 feet long, but only felt like it weighed 60lbs after you carried it around for a while)
I think it was this lens:
He knew I went down to Portland every June for the champ car races and offered to let me "borrow" it to try and get some closeup shots. You see, I was never able to get a press pass so I could get up real close like the pros.
So I gave it a go.
Before I left for the weekend I took the thing out to give it a once over, be sure it was clean, mount it to the camera and tripod, check the range, etc. What a monster!
It was in pristine condition, the glass was spotless, and the box was done by someone who knew how to work with wood. A top drawer setup for sure.
So I went to the races, found a few spots to set up and snapped up a roll of film. Since I wouldn't know what I got until I got the film processed I finished out the weekend with the usual shots, mostly in the paddock getting pit action.
When I got the film developed I found that most of the pictures came out pretty good, but I would need more practice panning with such a long and bulky lens.
I returned the lens to my co-worker in the same condition as I picked it up. I asked the guy what camera he had, and was surprised to find out that he didn't have one! So I asked him why he had the lens but no camera. Apparently he had a roommate years earlier who flaked out on the rent and he kicked the guy out, and this lens was among the stuff that was left behind. I offered to buy it from him but he wanted way too much for it, and there was the standing offer to borrow it anytime I wanted.
So I borrowed it a few more times, until I picked up the Sigma mirror I have and then built the rifle stock mount. And I always treated it as I would my own gear, and returned it in the same condition it was in when I picked it up.
But I was also afraid that each time something would happen to it and I would wind up having to buy it from the guy.