Petzl said to NEVER do this

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Opis:
Don't fall on teeth, because I did it for you. Toothed devices are intended to be progress captures up a climbing rope or in a complex pulley system. If you get a high enough force, it can desheath your rope and possibly cut through it. Petzl says that happens at 4kN and we did some human testing to find out if that is true.