A student killed by chewing gum

Wow, looks like we need to be careful to chew a gum, otherwise we would get caught dead with the exploded jaw like what happened to a student in Russia. well here is the full story if you care:

http://www.news.com.au/weird-true-freaky/chemistry-student-killed-by-exploding-chewing-gum/story-e6frflri-1225808518676