That reminds me
Long, long ago, (in a galaxy far, far away) I was setting up the first userid/password system for our mainframe. Certain religious elements were concerned that people might use 'naughty' words as their password, even though (in principle) only the individual user would ever know what their password was. I undertook that if they gave me a list of all the words they thought objectionable, I could arrange to screen them out. Never heard any more about it.