I saw the kitty right away too!
I think Mom in alberta is sooo right!
You need to talk to the parents and let them know what problems/concerns you have. what you want to do to work together to correct the behavior for their little one.
If they are not on board then you are in a losing battle and you have to make the choice if you can continue with her in your care.
Once parents know that your serious about something, they will most times work with you.
Don't let one of many down the road giving you a hard time think that your not cut out of the business. It has it's days but sounds like you got a tough little one from the get go. Chat with the parents and you may find that they are on board and your days will become much better!!
Good luck