Haven't you seen the published list of CK benefits:
- You may call other passengers "jerks" to their face.
- When instructed by the cabin crew to place your carry on either in the OH or under the seat in front of you, you may disregard that crewmember instruction and place your carryon elsewhere.
Engaging people such as this is fruitless. FA's can help here and few would tolerate any back talk as the placement specifically violates AA's safety & security policy, e.g. OH or seat in front and if no seat in front, everything goes in the OH.