I think I have experienced this when accidentally placing a MacBook (after a few minutes of heavy CPU usage) in my belly skin, below the belly button. The body

I think I have experienced this when accidentally placing a MacBook (after a few minutes of heavy CPU usage) in my belly skin, below the belly button. The body of the notebook is a bit hot, while the screen itself is cold (or it feels colder due to the aluminum). If both parts touch the screen you feel like you are burning, but if you only touch one of te two parts it's ok.