Exploding and swelling laptops

My mom is using a Dell. I sure hope that it is not the same model that exploded above. The hot and humid weather here is just within the ideal temperature range for operating the laptop. But you never know what can happened. I bet they people in the picture were operating that laptop inside an air-conditioned room. It's most probably an isolated case but it is still dangerous. Imagine if your clothes caught on fire.

The MacBook Pro is not that safe as well. There have been pictures circulating about the swelling batteries that plague the earlier models. And here is something that is rather disturbing: a distended battery: