Somewhere between annoyed and full blown tantrum (not that anyone usually witnesses them as they're usually internal XD).
Also depends on what it is. Last night I lost it (my sibling got to hear all about it before we went to bed) because my computer crashed (again) resulting in a lost cloth sim cache (this was actually important as starting that one again is tedious and I've been doing almost nothing else for the last three weeks and was finally making progress as I have settings that seem to work now) and what I thought was a lost text chunk, but fortunately the document I had cut the chunk from hadn't autosaved before the crash so the chunk was still in the original document.
Have also had it happen a couple of times on my blog when either the same thing has happened (computer crashed) or I accidentally navigate away from the tab (I have only now put in a thing that's supposed to autosave the form in case silliness like that happens but haven't fully tested it, all I know is that it can't recover from crashes, so I just save obsessively because I can at least save unpublished posts on my blog).
Don't think I've ever had it happen here though, but I've only ever posted only here a handful of times so it probably hasn't had time to happen yet XD
Are you recovering/rewriting the post that this was supposed to be or is it gone forever? :)
That sounds like it sucks. Does it mean you will be able to have better settings next time?
I have done this often - but I count this as user error, so I can't complain :D
It might get a rewrite, but it depends on what happens today - there might be something more interesting.
The settings seem to be mostly good, I'll find out if I can get up to the part where the quick movements start :D
And I complain about the user error but usually calling myself an idiot instead of being annoyed at the computer then XD