Hmm, my group of four usually meets for an average of 5 hours, sometimes 6.
Of those 5 we get three and a half hours of gaming done, 30 minutes of eating/small talk, and 1 hour of goofing around with ribald jokes, or going off on tangents.
For the rest of the time we game pretty seriously, about 2 and a half hours of combat, and an hour of roleplay with various people.
And we don't really try to be serious
I find Dancey's comment to be a bit ludicrous. I think he needs to find a game that suits his style more, or a gaming group, I should say. D&D does not cause that kind of torture, the wrong playing group or playing style causes that kind of torture
I can make an example by a couple of PBEM games I ahve been in which were freeform in disguise, and I hated those games. They really were torture for me, so I quit them as soon as I got pastthe false advertising. If I were stuck in one of those face to face, it would be turtue as Dancey stated, but I would not stick around.