On Friday last week I was on the loo in our downstairs toilet and the cat pushed the door open and came in yowling for attention. I bent down to give her a stroke and whacked my head very hard on the sink (which has been in the same place, same spatial relationship to the loo, for 5 years). Hooray for me.
That's the clumsy bit (normal for me). This is the nutcase bit: I now have a very defined linear dip in my forehead that I can feel with my fingers. It wasn't there before. Is it possible that I could have hurt/broken my skull and still be functioning normally apart from a very sore forehead and embarrassed expression? Nutcase, right?