An ad hominem, even against myself, would be fallacious when used to discredit factual statements. You're also inventing a strawman of 'needless' killing. In

An ad hominem, even against myself, would be fallacious when used to discredit factual statements. You're also inventing a strawman of 'needless' killing. In any case I've seen small children playing in places I 'formerly' saw a snake, and I'm willing to take all the 'discredit' in the world to not live with the guilt of finding out they were bit not long after I encountered the venomous snake. I don't give a shit about some snake off the beaten path far from where the vulnerable roam, and indeed I leave those alone.