I hate it when I do stupid things like that!
I was looking for a tool in the workshop and couldn't open the door on one of the cupboards I thought it might be in. So I stuck my head half in the other door to see if it had an interior latch. It didn't. The next logical step was to keep looking and give a hard pull to see where it was sticking. Unfortunately it was no longer sticking. Wham! The next logical step was to hop around the workshop with my hand over my ear saying "Ow that hurts! Oh that was stupid! Ow that hurts!"
My ear is now a dull purple and a size larger than usual, I can't even cover it with my hair because I have to keep my hair tied up at work.
I feel like an idiot

with a sore ear.