I connect my macbook to an external monitor at work and leave it plugged in all day so that it doesn't go into standby mode when the screens down. Anyways I'm not sure why but for some strange reason even after unplugging it and putting in it's case and in my bag it remained on for my trip home which is about 2 hours. Upon taking it out the fans were super loud and my lappy was really hot so I let it cool of for a bit. Lucky it's Winter here in Sydney or I think my laptop would've been gone. It's working now but I just wanted to know: 1. Why it didn't go into standby mode even if the screen was shut and it was unplugged. 2. If I've caused any permanent damage to my lappy.