What reaction Samsung’s phones cause depends on the person, but one thing’s for sure – this Korean man was not expecting the one he got from his Galaxy Note. The battery of the device exploded in his pocket, setting fire to his pants and causing second degree burns on his thighs, The Chosunilbo reports (via Patently Apple). Ouch!
A Samsung spokesperson:
Lithium ion batteries can catch fire due to external pressure or sudden changes in temperature, so we’re trying to understand what really happened.
To be fair similar incidents have happened with the iPhone in the past (like here), and it seems to be caused by the Lithium batteries, which can cause a risk as described above. You might want to carry a fire extinguisher, just in case.