I'm 5 foot 7...
Naw, what I did was I wanted to close the bathroom window in the ceiling(it's one of the those bathrooms that are very close to the roof). I have a metal rod especifically to open and close it, but I didn't know where it was, so I climbed unto the toilet sink but I misjudged the height and I bonked my head in the ceiling.
The funny thing was, at first, I was like "Whatever" and closed it shut and didn't give much thought, took a shower, had breakfast and drove to work. It wasn't only until about 5 minutes before my lunch break, just when I was finishing up my chores in the warehouse, I felt a sharp pain and I clutched the back of my head and yelled out: "Owww, my head!!".