In a true self defense, scared for your life or the life of others situation, anything less than lethal is not a choice IMO. That is why I do not own pepper spray or a taser. Don't want some prosecuter asking why I did not choose to spray or tase instead of shooting.
Well, just so happens that your opinion is spot on. I wouldn't have pepper spray or a tazer anywhere in the house.
A self defense shooters' action will be determined by the availability of other options available up until he had to shoot. Limit some of those options then you limit the scrutiny of your actions.