I'm definitely crying on the inside, and "**sobbing**" in clan chat but to be honest I just watch it back, see where I went wrong, what I could do differently and learn from it. If I can't learn or understand it then I just avoid that base design from now on. lol
I've lost a couple and it's because I've misread the line the troops would take and the path they should follow. Plus sometimes you just get bad luck. We're not going to win them all.
Saying that, I particularly hate losing the last raid of the day as this leaves an extra sour and lingering taste. :)

