19. I am not bald because of some genetic predisposition.
I had a full head of thick hair until the day when I learned a valuable lesson. I was living in Hong Kong at the time, and, as you can imagine, my apartment was very small.
Everything, and I mean EVERYTHING, was close to everything else.
This included the household cleaning products and my shampoo.
I'm not even sure which of the cleaning products I accidentally used.
The place was too small for a shower, and the bed that converted into a bathtub was impractical, so luckily I was washing my hair in the kitchen sink. Otherwise I would have no eyebrows and would probably be blind.
So, obviously, the lesson I learned was that one should always wash one's hair in the kitchen sink.