One of the things you learn when you have more than one kid is that kids have their own personalities, and you have to adapt to them to a certain degree. With kid one, she would have terrible crying jags and she needed a lot of coaching to stop falling to pieces very easily. With kid two, he has a much better degree of control, but then the tantrums are more physical and less emotional.
The other thing you learn is that no plan survives contact with the enemy.