I have a bunch of software/websites that I run. If I were to get hit by a bus, they would all go offline and there would be many confused users. There is no-one that could pick up where I left off.
I have on my todo list to make a dead man's switch. If I don't flip the update after a couple of months, a maintenance message is put up, and if I still don't update it, then an end of life process is kicked off before all my domains expire. Maybe I'll get to it some day.