It's been a really idiotic day.
I walked up to the mirror. I looked at my reflection, looked... and for no reason, I tilted my head back and then sharply forward. As a result, I hit my head on the mirror (apparently, I thought my head wouldn't reach it; the mirror is thick and wall-mounted).
I went to do pull-ups on the bar. I'm doing pull-ups (at a high speed)... At one point, while coming down, I hit my chin on the bar.
A bad day.