I read all of these hoping someone would bring up this sand man thing me and my cousin would do when we were little, one of us would lay down with your eyes closed and the other would pretend to cut your limbs open (with her nail) and then pat down as if she's stuffing sand into your limbs and then pinch places to make it as if she's stitching you back up and when you stood up you would feel like your limbs are super heavy. Does anyone know what I'm talking about? I cannot remember how we really did it, but its something like that. I was also looking up to see the children are dying chant one because my boyfriend thought I was crazy because he didn't know what I was talking about. I worked at an elementary school a few years ago as an after school program aide and the girls would always do that one on me during their playground time.