[Alcahuete]

I know this video had been posted here before, and I know that it should be very easy to find, but for some reason I am having the hardest time finding it. I've searched every related word I can think of, but to no avail. The clip in question seems to be one of those russian prank show clips, involving a woman (short black hair) in a white lab coat lighting a burner of some kind in front of a class, and having her clothes ripped off by a wire. I've searched lab, classroom, teacher, explosion, clothes ripped off etc... but I haven't found anything. Can someone help?