This sounds abit like urban myths like the vanishing hitchhiker..kitten in microwave etc… I would like to see proof of the razor blades. Razor blades are often used in urban legends though such as Vietnamese prostitutes putting them inside their bodies to mutilate American servicemen during the Vietnam war…surely that would damage the prostitutes equally… and one I heard years ago about “The Burnley Suicide Squad” a football “hooligan” firm putting two razor blades, close together, into potatoes so the resulting wound would be very difficult to stitch….