Well, the bad news is that I didn't successfully finish my Ethernet wiring project tonight. The good news is that I now have a handy window from my office room to the stairwell.
Wait, that's bad news too. The hole was supposed to end up downstairs through the floor, not in the stairwell through the wall. Flexible drill bits are approximately as hard to use successfully as they look.
I failed at pretty much everything today. I'm glad it's over.