If you’ve ever worked on a car you know the way your hands look afterwards. Or even a bigger job working on a bike will give that effect. It’s the kind of dirt that doesn’t come off with a wash, you have to scrub the skin and ideally use some special detergent to get it all. This doesn’t happen in one go, you have to scrub for at least 30 minutes, maybe more, to get your hands reasonably clean. There will still be dirt under your finger nails that won’t come out, but you throw in the towel and consider it a job done well enough. Now this is a scenario that mechanics have to deal with everyday, it’s part of the job.

But this is the same kind of scrubbing that surgeons do before surgery. Now, to draw a parallel here, I could understand that kind of meticulous scrubbing after a surgery. You’ve done the job, you have blood and tissue everywhere, that’ll need a good scrubbing. Of course, you’d like your hands reasonably sterile before you put them into a patient. But here’s the thing – surgeons wear gloves. Wouldn’t it be enough to just wash the gloves? No wait, the gloves are sterile, they come right out of the box, they’re used only once and then they go in the trash. So what’s the deal?

To make matters worse for the surgeons, mechanics is actually a more precise science than surgery. You can replace a piston with a piston, a screw with a screw. And the whole vehicle comes apart just as it was put together, with no damage caused by opening it up. Surgeons are more like those people who drill for oil, they can’t get in without drilling/blasting the outer surface and even then they’re not really sure where they are exactly. And when they find the problem, the best they can do is carve out a sizable slice and dispose of it. In the process, they will probably do some minor damage in the area, cause it’s a small space and it’s hard to move around in there.