Does anyone think that this is a bad idea?
Yes. It would be excruciating. Most people struggle to overcome SI with partial suspension hanging, and I would argue that this would almost certainly be more painful. People try to CTB by cutting their arms and more often than not they fail because the pain is too intense they have to stop. As someone who has self-harmed by cutting and also tried partial suspension, I can say at least in my own experience that even somewhat shallow cuts are probably more painful than partial suspension (at least with good technique)
I don't recommend this at all. If you're going for something accessible please, go for hanging. I guarantee it would be easier, more reliable, and less painful than this.
Like would I stay alive for long enough to feel the pain?
You would feel the pain instantly, so yes. You would be alive while you cut yourself, and for at least a few seconds afterwards. This is best case scenario assuming you hit the right places, but if you have to stop part way through cutting it would take even longer.
The biggest and most "optimal" artery in your neck is the carotid, and it is theoretically possible to live with a blockage of one carotid artery as there is collateral circulation provided by the other. You wouldn't get "knocked out" due to complete cut off of oxygen from the brain unless you took two knives and cut both carotids at once or something. You would most likely have to wait to pass out due to blood loss. If you completely severed a carotid artery this would be quick, but not instant.
Probably.
Would I have to pull out the knife?
Yes, the knife would act almost as a plug if left in place. The flat side of the knife would keep some pressure and reduce bleeding to some extent. In first aid (at least American Heart Association/Canada Heart and Stroke Foundation curriculum, but I would bet others too) they teach to stabilize impaled objects in place and to pretty much never remove them. In stabbings, car accidents, or other instances where someone becomes impaled with an object it will never be removed until the patient reaches the hospital where a surgeon will take it out and close the open vasculature to prevent exsanguination. The only exception to this rule is if the impaled object is blocking the airway or preventing performance of CPR, as these two things take precedent over bleeding control.
Does anyone think that this is a bad idea? Like would I stay alive for long enough to feel the pain? Would it fail?
- No, it's not a bad idea if you target the right areas, like the carotid artery or jugular vein. You might feel pain and stay conscious for a bit, but it should not fail if you sever these vessels
Would I have to pull out the knife?
- No, leave the knife in to ensure continuous bleeding and increase the likelihood of success
I don't mean to be rude, but please do research before suggesting things to people who are thinking about cutting themselves open. Cutting is pretty universally understood to be a poor method and suicide method failure statistics reflect this. Leaving an impaled object in place when the goal is exsanguination is also just plainly not correct. Penetrating wounds with impaled objects will pretty much always bleed more when the object is removed.
