Based on my own interactions with the Bürgeramt I think it would be most fun to have a Religious Name of "null null" -- at which point it's win-win, since you c

Based on my own interactions with the Bürgeramt I think it would be most fun to have a Religious Name of "null null" -- at which point it's win-win, since you can confuse the bureaucrats and/or demand that your full Religious Name be recognized since, well, religion. (Or, to up the ante, one might consider "Keine Angabe" as a Religious Name. It would stand out amongst the nulls, while also being the actual null they are trying to point to.)