First up is Eris
a bit about her: She tends to have a harsh personality and a mean demeanor, but to those she shows respect she can be fiercely loyal.
some ideas:
a) her colliding with a police dog resulting in some sort of fight
b) Doing dirty work for some other outcast since that's the way she lives on the streets
c) Running into a regular dog would work too, but they would have to get used to her mean personality or understand why the way she is.
d) This one I am not sure on, but she would always be open for mate or fling plottage, but like the one above they would have to be pretty understanding, very annoyingly persistent, or someone who could actually beat her in a battle to prove that they own her.
also feel free to make suggestions. I'm more than willing to rp her with anything, but keep in mind her personality might be too cruel for a happy go lucky type. Then again if the dog can take it then you are more than welcome to have an rp with her.