Has anyone NEARLY done something terrible, but stopped in time for some reason?

I bare all here . . I was married to an alcoholic and was sorely tempted to push him down the stairs and end the horribleness of the situation.
Then I realised that he had two blue, bloodshot eyes tattooed on his bum and please imagine the solemnity of my being asked to identify the body, and asking for him to be rolled over to check on the eyes.
My sniggering would be a dead give away and I’d still be in prison.