You argue that it would be wrong to stab my neighbor and take all their stuff. I reply that you have an ugly face. I commit the "ad hominem" fallacy because I'm attacking you, not your argument. So one thing you could do is yell "OI, AD HOMINEM, NOT COOL."
[...] What you need to do is go one step more and say "the ugliness of my face has no bearing on moral judgments about whether it is okay to stab your neighbor."
But notice you could've just said that without yelling "ad hominem" first! In fact, that's how all fallacies work. If someone has actually committed a fallacy, you can just point out their mistake directly without being a pedant and finding a pat little name for all of their logical reasoning problems.
Yeah.
It's like when those stupid car buffs say "Hmmm...yeah, transmission fluid" when telling each other what they think is wrong rather than "It sounds like the part that changes the speed and torque with which the wheels turn with respect to the engine isn't properly lubricated and able to have the right hydraulic pressure, so you should add some green oil product."
Another month has passed and here is a new rationality quotes thread. The usual rules are: