So, we're about three on a board, TATTOO and me are of equal strength, but I have him cut badly, right in the middle. But a third player, somewhat weaker, is coming up strongly, and we're both going to do badly if we fight it out. So I propose cooperation, WITH HIM GETTING FIRST! He says ok, reunites, collects +32 and then proceeds to finish me off, while I was attacking the third person. He would have already gotten first, but found it worth it to kill me first "just for fun" (quote). Now it's clear that TATTOO must have some serious psychological problems, if he can't stand getting cut by someone and later cooperating with him, so he doesn't mind cheating as long as he gets off on his pyschological deficencies.

Thanks for listening, and remember, avoid him like the plague.