So a mobile battery exploding has the same force a a construction vehicle (which tend ot be very big and very heavy).

So By my reckoning, ol' bin laden just need to strap a couple of dodgy sony batteries to Canary warlf and kaboom....

Hold on , back in a second , there's some banging at the door, be right barrrgggghhhhhh

"I say Ted, not only is this man dead, but there's tyre marks all up his body. What do you think it means?"

"Who cares, he has a burnt nipple - must have been an exploding phone"

"Ah yes, silly me..."