This has happened in my experience before, and it is one of the strongest reasons for good source control that is infrequently considered. It was a tragedy when a very wonderful and dear researcher in our group died suddenly, especially to his three children and wife that he left behind. It was also a great loss as well that we could never recover some key bits of source code from his computer, and that a very promis…
Obviously not a common thing, but it is a scary thought to think it's quite possible to work yourself to death in an office based environment. I'm sure many of us (including myself) can think of similar times in our lives when we worked this hard, heavily intoxicated with the energy poison of your choice, working multiple all nighters in a row. Even when you're young you're not invincible.