I inadvertently used a 60W power adapter to charge my15" rMBP. I now know I shouldn't do that as the rMBP needs to use te 85W power adapter. In fact, although the 60W adapter did charge the rMBP from 0 to about 75%, the 60W adapter got so hot during the charge, it then shut itself off. I'm clearly not going to use that power adapter to charge my rMBP again, however, I'm just wondering if I may have done any damage to my rMBP? I know I may've damaged the power adapter, but it was an old one and I don't care about it, I'm only concerned if I could've damaged the rMBP. Any thoughts?