Call of Duty and FIFA. I don't know why but sometimes CoD angers the hell out of me. Ah wait, yes I do
It's normally when you somehow get killed yet the killcam shows you weren't hit (this works both ways tbf) but the one which really annoys me is when someone uses a sniper on foot and quickscopes and of course gets a ton of kills. This is nothing against the opposing user but surely a sniper isn't built for mobility so in warfare, no fucking way is someone going to pick up a sniper and be able to shoot a guy with an assault rifle or SMG or LMG. Doesn't make sense.
For FIFA it's when a pass doesn't go where you intend it to yet you've got everything right. Weight, direction, the lot. The worst instance for me was in defence trying to clear a corner I held onto the 'A' button to pass for as long as I could and it delicately passed the ball to the next guy. I was immediately dispossessed and conceded a goal.
F12012 is only really irritating if you get some twat punting you off the track in sprint races knowing he won't get a penalty because of the more relaxed rules. In something like Mario Kart or F1 Race Stars, go for it! But F12012 is a simulation racer. Treat it like one, and don't get your knickers in a twist and resort to cheating if you lose fair and square.