Some will not be satisfied that this is enough. What is the worst thing you have ever done?

A long time ago I made a comment once jokingly that I was aware carried with it a high risk of preventing the conception of an otherwise-probable human life. Thus when the chain-reaction did indeed fall that way I had in my carelessness denied existence to another being who will now never live or love or eat very tasty Luna LemonZest bars ("The Whole Nutritional Bar for Women")