Just as the phrase is “for God’s sake,” the proper grammar is “for fuck’s sake.” It’s possessive. The fuck is the subject here, it’s for their sake. For the sake of the fuck.
For the sake of the Fuck!
** rides into battle
Neither are correct for a work email. If you want to say “for fuck’s sakes”, instead say “as per our earlier discussion”.
Follow for more tips on how to insult people professionally in a work environment.
For the usual candidates I either keep detailed notes, or make sure I can quickly find an earlier conversation (chat, email, whatever).
So in that case I’m then just answering “As we’ve discussed on 14.04. at 13:39, 17.04 14:30 and 20.04 at 14:15 already…”
They typically get the hint that when I’m capable of remembering in detail when we discussed it they maybe should make an effort of remembering what we discussed.