In reply to TobyA:
> (In reply to David Coley) I don't see how it could be fatal unless someone clips the prussik to the plastic fastex buckle and relies on that to hold them, and that is Darwin award territory. But be that as it may, people should understand their gear and how it can be used safety. These style of harnesses don't have leg loops as such so it doesn't really seem that much to expect people to learn the better way of abbing with a prussik. Or of course buy a harness with leg loops if you insist on using that method.
Toby, I agree. However people can do strange things, especially in the dark. I just think it would be a good idea to point out how bad an idea it would be in the instructions that come with it.