"My paradox senses are tingling."
Two words: Paradoxes, monies~. That's about all Tayl really cares about. Are you dying on the sidewalk? Expect her to snatch your wallet and run. Experimenting with time travel? You're so screwed. Tayl doesn't consider herself to be evil, she just really likes cash and trippy things. She'd be more than happy to do something nice for you if you gave her some dough in return...but, chances are, she'd just swipe it and run. That's the Tayl way, after all.
Tayl has her crazy tail, which is really all she'll ever need. Trust me.
Tayl's messed around in the Timestream so much that she doesn't remember anything about her past herself! She doesn't dwell on it too much; she'd rather not be tied down with memories and 'junk like that'.