Tore the cartilage in my knee playing tennis. My knee kept locking and anyone else here who's suffered that knows how excrutiatingly painful it is!
Not really an injury as such, more an accident, but when I was a toddler I fell head first into a large water filled tub which had been sunk into the ground and nearly drowned. Apparently by the time my parents noticed I was missing and pulled me out I'd turned blue and stopped breathing. Gave them a scare but I was too young to remember anything about it. Beggars belief why anyone would be stupid enough to sink a large tub into the ground in the first place!
Diane