BUT, if you read squids post, it implies it could be done without rational thought and therefore further implies that some successful attempts are mistakes.
You only have to turn a different corner, or have a chance meeting with someone and your life could change forever.
Not long ago, here in the UK, police found a whole family dead. The father had taken his own life, and decided to take his wife and his two little boys with him. He actually rammed a knife into his two year old son?
My only explanation for this is a sudden moment of madness. Not rationally able to control ones actions. Fucked up and nothing lovely about it either.