Family-related:
* George Michael: Her son's general existence, his teenage awkwardness, and his lack of social graces were a constant source of irritation. She frequently made snide comments about his "deformities" and his "lack of talent."
* Gob: Her son's magical illusions and overall impulsiveness were infuriating to her. She was particularly annoyed by his attempts to impress her with his "magic," often finding them to be embarrassing and pointless.
* Lindsay: Her daughter's relentless pursuit of attention and her constant need for reassurance were a major source of frustration. Lucille frequently criticized Lindsay's intelligence and her lack of ambition.
* Tobias: Her husband's career path (or lack thereof), his delusions of grandeur, and his penchant for inappropriate behavior were all major triggers. She often mocked his "never nude" lifestyle and his attempts to act.
Other pet peeves:
* Anything not being "perfect": Lucille had an obsession with perfection in everything from her appearance to her home decor. Anything less than perfect was deemed unacceptable, and she would often go to great lengths to rectify any imperfections.
* People not understanding her: Lucille believed she was the most intelligent and sophisticated person in the room and frequently felt misunderstood. She would often express her frustration through sarcastic remarks and condescending behavior.
* Lack of respect: Lucille expected to be treated with deference and respect at all times, and she would react with extreme anger if she felt her authority was being challenged.
* The "wrong" people: Lucille had a very narrow definition of "acceptable" people, and she would often express her disdain for anyone she deemed to be beneath her.
It's important to note that Lucille's pet peeves were often a reflection of her own insecurities and anxieties. She was a deeply unhappy person who sought validation and control through her constant criticism and judgment of those around her.