I have never noticed this before, but today I was in the single rider line at Radiator Springs Racers and three times someone came barging though the line to catch up to their group that had gone in ahead. in general I don't have a problem with groups in the single line, but I thought that this was too far out there. if I was having a bad day I might have said something.
I can't recall any other attraction with a single rider line like RSR so it may only occur there.
oh, also I was told fastpasses ran out around 9:30, the single rider line around 10:00 was an hour wait.
the ride is great, but my first ride was marred by three smart phones being held up in the first row to record the ride.
also, off topic, is there a mobile version of mousechat? I thought about posting this while I was waiting, but it takes too long to load on my Sprint htc Hero.