ExpatK it made me laugh too - I am known for my daftness so I have decided that it's part of my charm.... It does look like it's going to grow back though - I was worried that at a 'certain age' it wouldn't. The worst of it was I didn't notice till the next morning because I was rushing to go out. We had been invited for dinner to an ex employee of my husband's, and I'd only met him and his wife once before. I was sitting chatting to them for hours at the dinner table, not knowing that my eyebrow was bald.
And treetops, I can't believe a hairdresser did that to you! I hope they gave you a free haircut after that!