I've just spent the last 6 hours with a scene I really wanted to do.
After lots of hangs, split renders and finally getting it all together, I looked at it and thought "nah, doesn't look the way I wanted", and just deleated all the files.

There comes a time when you realise that you've wasted enough time on  a project that's just not working. Six straight hours is my record so far on a single render.
Wondering how many others have had similar experiences?