lol
The best Stalemate
Yeah, chess players need to be awake. Sometimes I make my moves late at night and I don't bother looking too much at the position and make a bad move. Othertimes - late at night - I look at the position and decide to take another look next day when I am more awake, and that is often a good idea.
Anyway in the position you posted it was moving the pawn to f2 that was the blunder. After that move black can not escape a draw. So that was the point where black was not awake. Take a look at the following, there are also some variations if you click on "MOVE LIST":
The greatest stalemating combination ever was seen in a game between two computers, Shredder-Gull, 2013. Set up the position after 44...Qxa4 and have a look. http://www.chessgames.com/perl/chessgame?gid=1714659
f2 wasn't really a blunder. Black could have simply captured the rook with the bishop and would have an easy win.
There is no moment in chess which emotionally tops stalemate, for either player. It is a brief moment of "OMG", but stalemates can be cool too. Take this 5 minute blitz I just played on live chess. I can't post the whole game because it is long and I'm having trouble opening the PGN with notepad, but here is the final position: