A human foible would be a small fault or weakness in a person's personality or character. For example a person with no sense of humor would have a foible, or even a person with a disease such as autism.
minor weakness of character
He's foible was that he was impatient and easily annoyed.
Ferule The Actual answer is Foible
Perhaps a "foible".
weakness
Foible is a minor weakness or eccentricity. We must tolerate minor foibles or weaknesses in one another.
I am eternally grateful to my teacher, whose only foiblein all the years I knew him was to ocasionally sneak off at night to see the latest X-rated barney movies.
Those letters can be used to spell "foible".
jail time
One of Sophie's many foibles was her lack of introspection.
Cats and the humans.
bovine. course, docile, foible