Here's a breakdown:
* Petty: Small, trivial, or unimportant.
* Foibles: A minor weakness or eccentricity in a person's character.
Examples of petty foibles:
* Always forgetting where they put their keys.
* Being overly dramatic about small inconveniences.
* Having a peculiar way of eating their food.
* Being overly critical of grammar.
In essence, petty foibles are the small, quirky things that make us human. They are generally harmless and often add a touch of humor to our personalities.
Keep in mind that the perception of what constitutes a "petty foible" can be subjective. What one person might consider harmless, another might find irritating.