It seems that in Warhammer 40k, agreeing to play bad and lose against friends during a tournament to harm other players is called strategy. No wait, don’t stop reading yet, these aren’t my own words.

Check the article, which is hilarious by itself (here) but also this informative comment (my source). God, I feel for the girlfriends of people who play these tournaments (and their families, and even their non-gamer friends).