I just got myself a MacBook Pro Retina yesterday - best money I have spent in a long time. I wanted to do a clean install / recovery and had to go do some other stuff, so I closed the lidt and put in the box (my little son is very curious) on the setup screen. When I came back later to take it out of the box I noticed the fans was running like crazy and the machine was hot. Apprently I had not gone to sleep when I closed the lid. I took it ot and went outside immediately to cool it down and there have not been any issues so far. Is it safe to say that it has not harmed the machine in any way? I mean wouldn't it have shut down if the temperature got too high? Any need to worry if the machine is working fine so far? And can I test if it has affected my machine?