It officially happened...
Accidentally used rm -rf /*
(Actual command was a bit more involved, but it did pretty much the same thing)

Laptop doesn't boot now. Saved my home directory though.

Hooray.

At least your dotfiles didn't get hurt.

@jayMcD
Ever heard of tab-completion?

The bad news is: you will eventually do this again :/ backup regularly

What was the full actual command? I like to learn from others mistakes.

@Diactoros was trying out bedrock Linux, which allows you to use multiple package managers without them conflicting by sandboxing them... I think.

Installed a minimal Ubuntu, and wanted to delete it to install a different version.

rm -rf /bedrock/strata/*

I think either rm followed a symlink, or I had my Arch installation mounted in there as well without noticing. And suddenly it was hallway destroyed before I noticed.

Good times. Deleted that Ubuntu strata too though, so there's that.