Sure, let’s break it down step by step and see how we can keep the math of your recklessness neat. First, the rope—use something that can bear the weight of a human plus the dynamic load of a fall. Then attach a secure anchor point at the roof edge; a single bolt isn’t enough, you need redundancy. Next, you need a self‑belay device—otherwise you’re just a glorified rock climber without the benefits of a safety net. If you insist on ditching the harness, you’re basically asking the rope to do everything: support, shock‑absorb, and guide. The only sane way to do that is to treat the rope like a living thing, tightening it to a friction grip, then pulling yourself along a vertical rail or a series of pulleys. If any part of that fails, you’re looking at a hard landing. The plan: anchor, friction device, controlled descent, and a quick exit route if the rope gives. Remember, the universe hates poorly planned paradoxes like this one.

You’ll get the thrill, but the rope will give the first laugh, not you.

A rope doesn’t giggle, but if you treat it like a joke it will let you know before it decides to pull you in. Check the knot integrity, test the tension, and only then let the anticipation do the rest.