Have you, after becoming an atheist, had to or decided to go through any kind of religious ceremony and why?
Yes. I had my daughter baptized. I did it mainly to make my parents feel better and to get them to stop whining about it. Although the whole baptism thing is completely meaningless to me, in retrospect, I think it was a mistake. I won't do it again for any other children I have. (Paul J. Koeck, #360)
FYI - Unitarianism has traditions (as does any social institution), but it is not based on in any way on the idea of "religious doctrine." IMHO, it is the most appropriate church for any atheists who were raised in the Jewish or Christian traditions, but who still have any inclination to go to church. (Todd S. Greene #884)
It gets even better. My friend and several members of her family are 'Christian Jews'. Her mother's minister offered to do a five minute service before dinner. The service lasted 30 minutes and had me nodding off and the children present yawning out loud. And, the minister was totally spooky. He always speaks in this trained drone that you usually just hear during sermons. He looked and sounded the way a movie maniac sounds when trying to convince everyone of how sane he is - slow and drawn out. Boring as hell. I pity his congregation, if this is the way he always sounds. I couldn't wait to get out of there. Fortunately, he'll be leaving about the time I'm arriving at my friend's place tomorrow. And, tomorrow is the last day of the shiva. (Michelle Malkin #1)