Help I only have a thin cotton rope and a sock. Can I pull off CTB?

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I'd say it's very possible. Use the sock as padding for neck Do a simple half knot and tighten it as much as possible and then Criss cross it around the back of the neck in a way where the tension is kept. And then when the rope is at the front again, I can do a secure knot in a way where it will never come undone. If tight enough and positioned well, unconsciousness will be swift and won't have to worry about anything.

Maybe there's another way of doing this let me know your thoughts