Tell you what...back in Clear Lake when I first started my own service, a local guy who happened to work next door at NASA called me and asked me to come replace the belt on his old Whirlpool. Mind you, this guy worked for Lockheed, the manufacturer of much of the space shuttle, and was an astro-physics engineer. Real brainy stuff.
I told him I'd be right over, and he said, "Great! I've already got it apart for you!".
I should have known by that statement that I was in for a job, but nothing prepared me for the spectacle I saw when I entered his garage. He had removed the tub, the transmission, the pump, all of the braces under the superstructure and the best part was yet to come...he had sorted every nut and bolt into separate baby food jars, each appropriately labeled with the type and location removed from.
I was stupefied...
It took me an hour and 1/2 to re-assemble the machine so I could replace the dang belt. I charged him twice the labor, and on my way out the door, told him, "Bob, you're a nice guy, but I don't tell you how to fix the shuttle so leave your washer to me next time!".