Damn, that's gonna leave a mark.
My faults:
1) Put on a position just before knowing I'd be away from the screen for a few hours.
2) put on a position too big for me to start with
3) was WAY too confident my exit order would fill while away from the screen
4) no hedge
5) later - didn't set any price alarms to wake me up just in case.
Circumstances making it even worse:
1) got stuck away from screen for several hours longer than expected in a building with no electricity or internet for much of the time.
2) had to be on airlines this morning during econ numbers release.