i completed five years of high school at st. pius x in ottawa, and used those credits to get into three different universities (i settled on carleton because it was close) but i don't think i technically have a high school diploma. the reason is that i resisted the community service requirements, under an argument that i felt unpaid labour was unjust. in the end, i decided that holding to my principles in resisting forced service was more important to me than having the diploma was.
so, i've been consistent on the point for a long time.