Slave's fingers trampled on the edge

Description: The slave's hanging off an edge - barely hanging on to it with his fingers - in the perfect position to be trampled by my brutal boots! i walk back and forth over his fingers, stand on them with my full weight, grind them under the brutal tread of the boots and even stomp down onto them. how long will the slave be able to keep hanging on to this edge? he's screaming in pain and begging me to help him ... but i don't think so ... it's way too much fun to enjoy his fear and suffering under my boot soles!