Watch a vape pen explode in a shower of fire inside a man's pocket. AJ+ Facebook Video demonstration of fatal electronic cigarette explosion. 25 separate incidents of explosions and fires involving e cigarettes were reported from 2009 to 2014 with 8% of these being reported as Exploding E cigarette Causes 'Blast Injury' to Teen's Jaw RT Vape causes brutal third degree burns to man after e cig explodes in his pocket