Back in my Engineer days, where I'd spend much of my time writing technical reports, I'd always remove the Insert key from my keyboard.

It's sitting there in that block of six keys that you use all the time when editing text (home, end, page up/down, delete), and it's a little timebomb. You would invariably hit it by accident at some point and change your editor into "overwrite all my stuff" mode.

It would usually take a minute or two of ruining your document before you realized what was happening and spent the next several minutes repairing the damage.

I would go years at a time without ever hitting that key on purpose, so I just kept it in a drawer, in case it ever needed using.

Now, as a developer, there's an Insert in tons of useful keyboard combos, so it needs to stay there. And laptops have ruined that old useful six-key block so it's a lot rarer to hit it by accident.

But it had no business being there. Fifteen years later, I'm still not a friend of that key.