Totally agreed.

Yet (to continue with the metaphors) telling someone dying of thirst "You should've packed more water." isn't immediately helpful.

Please assume (and that is addressed to everyone who would like to comment) there is no other way, you are in that spot and you need to get that work done. That's what my question is about.

And BTW, I can't speak for other people, but in my case being in these situations where I have more work than I can complete within regular working schedule, is more often caused by me loving my job too much, then me, being forced to work longer hours.

Thanks for the links, will check those out.