Not exactly an infant, naturally, but a small kid. In this case my youngest son, 9 years, who got the luxury of playing his DK on Sunday while I was first having a nice jog and then a long walkie with one of the dogs.
His DK was lv60 when we got his UI set up and I left. When I returned half an hour later, he had gotten almost one level more, without problems in the quests and was already stating that the game feels easy. After another hour and a half the DK was lv62, my son had needed help with only two quests and he was convinced that the game was easier, his unholy DK was a brutal killing machine and the mobs in Hellfire Peninsula gave more exp than earlier.
Who am I to agree? The truth in this case came from the mouth of a young gamer who knows neigh English, plays a game which he shouldn't even touch and who has earlier - before patch 4.0.1. - been suffering from utter difficulties with the levelling process.
I also confess that I did the unthinkable and installed Carbonite once again. Only to rationalize my Loremaster project, that is. And I have to say I was very, very pleasantly surprised after I got it running on my machine. Gone is the heavy and straining memory usage, the addon works fluidly and the new additions are pretty nice, too. Partly with the help of it I finished the Grizzly Hills loremaster part in a breeze, and still had time to read the quests.
Next stop Zul'Drak and then it's all Old World till either I finish the Loremaster or Cataclysm hits. I have already made a decision that I will queue for randoms only as a dps on my warrior, as this gives me a bit time to do quests on the side. I did tank only one boss over the weekend, all the rest of the few randoms I was dps.
Like someone commented earlier in Twitter: Why bother with the gearing if I'm not raiding?