Look, we all admire MacGuyver. And we hope that when faced with some impossible situation in the future, we'll be able to cobble together a nice solution out of random shit we have lying around.

But you know who you probably don't want doing that kind of on-the-fly improvisation? The surgeon who's working on your spine. That's one case where you'd pretty much like them to have that shit planned out ahead of time, in some detail.

In 2001, Arturo Iturralde was supposed to have a pair of titanium rods installed in his back (perhaps as part of a slow transition into cyborg assassin). However, once his back was flopping wide open on the table, Iturralde's surgeon noticed that the rods were missing. Using quick thinking, the surgeon used the next best thing he could find: a screwdriver.

After a quick hacksaw job to cut off the handle (because, you know, the handle part isn't medically sound) he jammed the tool in Iturralde's back, presumably with a handful of finishing nails and some copper wire. Unsurprisingly, Sears doesn't make their screwdrivers medical grade and it snapped a few days later, forcing Iturralde to endure several more surgeries.

 
The next best thing.

The end result was the doctor and the hospital being on the hook for $5.6 million. Really, it sucks that the hospital had to pay, because how could they have known? Oh, wait, because the guy had already had his license suspended in two other states.