Knife versus toothbrush
Prince Ribbed VS Evil Lady with Broken Throat
When they were 8 years old, they entered Balian together.
When he was 16 years old, he was the captain, and she was trying to climb up to the position of captain.
When he was 26 years old, he was still the captain, and she climbed to the position of vice-captain.
If she hadn't been told by that person when she was little that if she used a toothbrush as a weapon, she would avoid tooth decay, and she probably wouldn't have laughed her enemies and subordinates down with her own weapon at the end of every fight.
If he hadn't been told by that person when he was a child that if he couldn't play the piano, he would just pull out all the piano wires and stop playing. So he was keen on using piano wires to shut people up forever.
This is how bad luck comes about.
Conception: