What's your weird naming rule?

Do you have naming criteria you know is very specific and perhaps dumb but you stand behind anyway?

Personally, I would never consider a middle name starting with J to prevent nicknames like AJ, PJ, JJ, etc. Sorry to all you great _J's out there!

Some I've heard from others: - First, middle, and last name must all have different syllables - No repeating first letter in sibset - Can't easily be turned into a nickname