Guilty. Only once in a 'real world' event, though. Way back in high school I had been matched up against a team-mate at a tournament. The winner would be ranked 3rd and the loser would be 4th; 4th place is technically below ranking. My being ranked would have been an awesome personal accomplishment. At the same time, placing in the top 5 at this tournament was a major accomplishment in and of itself (close to 200 participants in the entire tournament). On the other hand, It meant a lot more for my team-mate, at this tournament and within the team, to be ranked than it did for me to be ranked.
I'd been having issue with counting a particular move for weeks. We drilled that move all the time because everyone knew I had issues with it. I'd lost before because of it. So, at this point, it was instinctual for my team-mate to pounce on the error the second I made the mistake and no one questioned that I had made that mistake.
The team was ecstatic that I ranked in the top 5, even got a massive hug from coach afterward, and my team-mate was bumped up to Varsity after this tournament (I would not have been pumped to Varsity).
The saving grace of this particular situation is that we (my team-mate and I) were truly equally matched and regularly bested each other. We were sparing partners at practices 9 times out of 10 and were very familiar with the other's style. The only reason I'm sure that I let the game go is because I consciously countered that particular move incorrectly knowing my team-mate wouldn't miss the opportunity.
Sorry for the long story... this is the first time I've ever told it. O.o
Guilty or Not Guilty: Spent full 24 hours (sans quick bathroom breaks / grab-a-snack-&-come-back breaks) playing a single game / RP scene?