Schooling in Egypt is hazardous to the minds of the young at the best of times, but one Egyptian teacher gave pupils in his science class a lesson that they won't forget anytime soon.

The unnamed teacher, believed to be thirty-eight year old Ahmed Gaber, was demonstrating how to produce a mild chemical reaction using oxyhydrogen, but it anything but mild.

Luckily, no one was hurt, though tens of parents were pretty darn angry.