Violet is a complete terror, especially before the Roeder-Czapiewski wedding when she attempted to disrupt the pre-night planning session between Psycho Andy and Emily Coyote as they scribed the entire ceremony out at the kitchen table. Andy believes Violet was just curious to see what was going on, and trying to figure out why the energies she'd felt from Emily's computer was now coming out of this weird guy in her kitchen.
Additionally, Violet can be a horny, screaming terror (even though she was fixed in 2008). Regardless, Andy believes she is a sweetie. And although her caterwauling is the bane of Emily's existence, Violet is still her little kitty (even if she and Kay reached the pre-planning stages of bartering a trade of Violet for Pins).