Looks like you found out...Did you learn anything, Grasshopper?
What we need to find is a smiley hopping around in pain, holding a foot.
I have many lumps and bumps from working on our Airstreams, it seems the most common is knots on my head from running into the deployed awning arms. Of course, I can't take any photos, because I usually can't see right after whacking myself in the head...