[Argh. Cannibal. But argh. Philosophical moral talk. Philosophy makes for grabby hands.]

I'm not a subscriber to group morality. I was taught that each individual should, as you said, form their own morality. Not so that they would follow an empty ideal, or be ignorant of moral character altogether. But beliefs formed through observation, education, and experience hold more significance than those impressed by convention.

Therefore, my moral arguments may be agreed upon. Or they may not be, based upon the fact I'm an inmate. The only reason I have for them to be accepted is for me to exist as part of a community and a social group.