The pressure of the moment can cause someone to kill someone or something
The leniency of consideration might treat with more kindness
Which is to be desired. Or at least often to be desired.
But if my house is on fire and you notice, I wish you would kill
That fire. But if my hair is on fire, while I'm sure you'll be enjoying
The spectacle of it, act quickly or don't act at all. But if a sudden
Jarring of us all out of existence is eminent, do something.