Ti might also be grieving the loss of the humans he considered his family. Give him time. Soon he will discover he has come to the right place to get the life he so rightly deserves and what fun it can be to play with the Miley girl. Would there be a way you and Miley could play in sight of him as he hides under the dresser? Maybe just his observing some fun activities might convince him that life *out there* might be interesting.

Don't get discouraged. Just remember that good things come to those that wait. (Lesson learned in potty training Hannah.)