Let's not make this about the iphone, which is a bit of a deflection. A truer picture of the danger is this:the guy from the delivery company was just holding the package wrong.
On a more serious note: another iPhone burned on June 21, but on an airplane. It had slipped behind the back rest of a business class seat and caught fire when the cabin staff tried to get it out - they actually had to put it out with a fire extinguisher. It's likely that the phone got damaged when the position of the chair was moved. In any case: I can see a general electronics ban for public transport on the horizon now - lithium ion batteries are freaking dangerous and they really shouldn't be on airplanes. Even though that would really suck - I fly a lot and use my laptop and my phone on planes routinely.
Sooner or later a lot of people will die because of someone's gadgets catches fire on a plane - I hope they don't wait with a ban until that happens :-( If it happens in the cabin, I guess people can deal with it - but what if it happens in the luggage hold? It beats me why it's still allowed to pack electronics in suitcases.
http://www.theregister.co.uk/2016/0...issing_emitting_smoke_and_making_orange_glow/
and another case earlier this year:
http://www.independent.co.uk/life-s...ne-hawaii-washington-anna-crail-a6944416.html
The latter is even more worrisome as the iPhone just caught fire without being charged etc. So again: while Samsung's problems are of a larger scale, the iPhone can't be considered 100% safe, especially not in airplanes.
http://abcnews.go.com/US/lithium-ba...ophic-plane-fires-faa-warns/story?id=36816040
Having said that, li-ion batteries have the potential for damage, but there is only one mobile phone world-wide recall going on at the moment.