My favorite anecdote of this is talking with railroad people. Talking about rolling stock, and locomotives. And talking with someone (at a museum, or something

My favorite anecdote of this is talking with railroad people. Talking about rolling stock, and locomotives. And talking with someone (at a museum, or something, I don't recall) they mentioned something like "Yea, we think we all of the locomotives tracked down, but there's always the chance one might be in someones private collection somewhere." And I just have to marvel at the idea that someone, somewhere, has a locomotive shoved in a barn somewhere out of public view. This isn't Steve McQueens Bullit Mustangs under a tarp somewhere. It's a locomotive! I had a friend that collected pinball machines, that was an endeavor all its own.