Killing the animal is almost never necessary. Snakes don't have contempt for humans and want to kill them. If they did, you would see mainlands regularly killing their keepers. These animals are so much more powerful then a human there isn't a single thing you could do if it wanted to kill you.
The reality is that every time a snake constricts a human it has mistaken it is a food source. Many have dubbed this as a SFE (stupid feeding error). It is always the keepers fault when this happens. Since these animals only constrict humans when they mistake them for food all you need to do is "un-mistake" them.
This can be done by keeping 40%+ alchohal in a spray bottle or using Listerine mouthwash in a spray bottle. Spraying this in their mouth burns and tingles just like it does humans who have never come into contact with the substances. It is like a smack right to their senses and they will recoil with vigor. This can sometimes be done by dunking animals in cold water quickly as well. If this doesn't snap them out of it then yes you can reach down and break a tail tip, this will also cause them to recoil from you. "I" also would never recommend someone to keep a animal that is 8ft+ without another capable person in the house that is available to be in the room every time you interact with the animal (cleaning, feeding, handling).