I think a preferred option for many people in this situation would be to go to an assisted suicide clinic like Dignitas in Switzerland where you can choose to d

I think a preferred option for many people in this situation would be to go to an assisted suicide clinic like Dignitas in Switzerland where you can choose to die at a time of your choosing, without pain, surrounded by your loved ones, with the 'operation' performed by a medical professional. A problem with trying to kill yourself is the risk of getting it wrong - shooting yourself in the head but not managing to kill yourself, not taking enough of your drug of choice - and leading to a possibly lengthy agonising death, or permanent coma etc. The problem people in the UK have with going to somewhere like Dignitas is that the law around assisting someone with suicide is vague, so if someone's family goes with them to Dignitas, they risk arrest when returning to the UK. In practise I think prosecution has never happened, but people have certainly been arrested on returning to the country. Personally I think assisted suicide should be legal (although not as something that can be a spur of the moment decision) so that people can choose to take their own life, without the risk of pain or error, and with the support of their families.