[awaisraad]

a colleague accidentally force pushed a stale branch to master and a weeks worth of work was potentially lost. That day git reflog helped and saved our jobs as we were contractors for a big Germany based client.

[papito]

Always disable force pushes to trunk (if that feature is available, as it is on Github).

[LgWoodenBadger]

I hope you(they) are backing up their source code as well, which would have helped you if reflog did not.