I’m not really fond of the idea of categorizing atheists (you either are or aren’t, and the game of labeling is often a short step away from ranking, and then you’re on the slippery slope to the No True Atheist fallacy), but Hank Fox has an interesting comment that categorizes reasons for being an atheist. It’s relevant to that video of a mother reacting to her son’s ‘coming out’, though — one category is the “Rebel Atheist” who adopts the idea to piss off his mother.
Now let’s all aspire to be Awakened Atheists.