University
A certain university somewhere in mid-Wales has password rules that forbid anything like a dictionary word in just about any known language, and checks it. They must have a Cray handling the password validation.
Contain both upper and lower case characters (e.g., a-z, A-Z)
Have digits and punctuation characters as well as letters, e.g., 0-9, !@#$%^&*()_+|~-=\`{}[]:";'<>?,./)
Are at least six alphanumeric characters long.
Are not a word in any language, slang, dialect, jargon, etc.
Are not based on personal information, names of family, etc.
If I remember rightly, you can't reuse the last 30. But at least it only forces a change every year.