Pythagorus, Czuch, BBW.. ah, what the heck, anyone: That's a good point (P & C), I'll happily offer a cube early than I should to a player who is liable to be scared by it and drop the game. That's taking advantage of a weakness in their understanding of cube use and may be worth 1/4 a point, for example.
It's only a small step to offering a resignation of a lower value in the hope that the opponent will misread the position and accept. If accepted that's a gain of a full point (most usually).
Earlier I called such a resignation action "unscrupluous" and have reconsidered it in the light of the above. But - and maybe because it's too new a change of perspective, maybe because the magnitude of the gain is so much greater, I don't know - somehow it still feels wrong.