Oh. Small addition not on the slides:

Any time the discussion ends up in talks about that something might be illegal, unethical or arseholy it's best practice to innocently ask to have that clarified by email.

There's two options: they realize it wont fly and move on, never mentioning it again and not pushing you into participating in shit. The other is they double down and explain why they can't email. In that option you nicely learned these are people you don't want to work with #win :-)