My daughter works for a store that sells computers and just last week happened to see a returned laptop that got sooo hot that some keys actually melted and shrunk to half their size!
Luckily the person had the extra warranty and they gave him a brand new one. Not sure I'd leave a laptop running hours on end unsupervised. A few papers around and who knows, could come home to a pile of rubble that was your home.
Also makes you wonder who's building these things?
