I dunno what you mean by ‘nasty’, but if it is what I think it is, probably not going to motivate him if it could be perceived as insulting or defamatory.
There is a reason why I have shut down and refuse to entertain anything that could be perceived as nasty or petty behaviour in our push for dual citizenship (as an example). It doesn’t work. Nice, polite, educating-as-equals works.
I know that because the years of me seeding into the boss’s head to reduce the work we do finally paid off. Next year will be changing to a 4 day work week. Taiwanese company. Taiwanese boss. Taiwanese owned.
It worked.