Vet him first and if he gets a clean bill of health, it is probably avoidance based on fear. But first, the vet. Shaking and trembling and isolating can easily be illness and/or pain.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |