There are good examples in the comments too, though I mostly recall it for getting into a heated argument with someone making utilitarian arguments for torture.
Interesting, thanks! My position on the whole 'using moral intuitions in applied cases to disprove fundamental moral theories' is basically what I said in this thread: https://twitter.com/samziz/status/1412198411579887622
Incidentally I wouldn't agree with utilitarian arguments for torture, but not - necessarily - because I don't agree with utilitarianism. I think it's certainly possible to make higher-order or rule-utilitarian arguments against torture, within the parameters of utilitarianism.
https://crookedtimber.org/2012/02/25/occams-phaser/
There are good examples in the comments too, though I mostly recall it for getting into a heated argument with someone making utilitarian arguments for torture.