Super guilty. It's not that I can't sleep, it's just a compulsion to stay up even when I'm not doing anything. I guess it's because I think that going to sleep somehow takes effort.
Ever broke something valuable out of anger?
(This was a no for me until about nine months ago when I finally got so fed up with my Hackintosh while working on a mix that I, in one quick motion, grabbed my mixing headphones off my head and threw them to the floor. They didn't break, but I damaged the cone in the right ear. I felt really bad because they were my babies and I rely on them for production, obviously.)