3 volunteers are brought onstage and requested to selected a dynamite looking firecracker. 4 are real and one is a dud ( he lights one to prove it - literally shaking the CNCC convention centre to its core with an enormous bang ) The volunteers each take one - the last spectator inadvertently providing the magician with incorrect information as to what number he has selected. With the magician now reaching for one of the remaining sticks ( using incorrect information as to what sticks remain ) - he places it in his mouth and begins to light it. Some members of the audience are horrified - not knowing whether to intervene to prevent a ghastly accident. A scream is heard and the magician's face is covered in blood ... he had planned it all and knew exactly which one to choose.
I can't help but be reminded of this often-fumbled magic trick (not for the squeamish), except that, in Doumergue's case, the failure was staged. No video is available of Doumergue's fire-cracker trick, but here's his well-known version of the torn and restored card.