Exactly. They are like 3 yr old siblings that will never grow up and move out.
When Chloe jumps up high when Duchess is chasing her..........that drives Duchess crazy too. She just barks and barks at her but the look on my cat's face while Duchess is making all this noise is priceless. The more Duchess's barks, the more my cat is like "my plan is working, she is about to get yelled at.....bwaahaaa".