In-game, I prefer to only play with people who enjoy the struggle that accompanies a hard won victory. If you are someone who throws games because you get off on losing...how about, just don't match? Or just be subtle about it lol. Nothing is worse than ending up in a heated struggle only to have the opponent play dead and wait-to-lose while edging themselves silly. Don't be that person.
I have opponent options off because life is just more fun that way. You sure would be cool if you turned yours off, too!
If you somehow get me into the RP mood, you're in for a fun (and probably long) time.