"If I wait too long between eating I get dumber and meaner. I've seen what happens to zombies that don't eat, if they choose not to or can't. We start to decay and... it's more like the movies, I guess. When it gets to that stage no amount of brains will bring a zombie back."
She frowned.
"I also... when I eat someone's brains I can pick up memories or parts of their personality, skills even. Except the brains that show up in the morgue, from the locals, they're really... bland. Like, there are dinosaurs in the park right in front of me but I'm more concerned about getting back from my lunch break on time. I know it's not me, but it's hard to... fight it... I guess, sometimes."
She shrugged.
"Since I work in the MEs office, back home I told one of the cops I was a psychic and use the memories of the dead to help solve their crimes. This City doesn't really have crimes like that, though. That should be a good thing, right?"