Not dangerous at all. If you've got something like this, which they have, you clip both ends. If you fall, the shock is taken up by the sewn strap (in the thing that looks like a block) unravelling. This is safer than a "one end" attach for two reasons. Firstly, it gets you into the habit of always having at least one clip attached, and secondly, there's no loose rope to tangle round you and trip you (or, worse, wrap itself around your arm / leg / neck as you fall).

(, Sun 15 May 2016, 20:06, Reply)