Face Falling

So it was late Friday night and I was at my dining-room table, trying to do שנים מקרא ואחד תרגום (which is allowed on Friday night when pressed for time - see סעיף ט here), but when I got to the middle of Revi'i, I started dozing off and put my head to the table.  I woke up a few minutes later and I was considering calling it a night since I was very tired. Then, I noticed what verse I was on:

וַיֹּאמֶר יְהוָה, אֶל-קָיִן:  לָמָּה חָרָה לָךְ, וְלָמָּה נָפְלוּ פָנֶיךָ

Needless to say, I continued until the end of the Parsha.