Snickers Update 
Snickers is still having a tough time at home.  One of the other residence cats has become a sentry and when in the house lays outside the bedroom where Snickers resides.  Both Snickers and Coty poke at each other under the door.  Snickers gravitates towards the door when he senses the other cat.  As soon as the door is open though she hisses at Coty and takes off and hides under the bed.  This is probably an every other day occurence.  Both my son and I have tried to hold each others cats in our arms and just introduce them but Snickers always hisses and ends the encounter my scrambling out of my arms and hiding under the bed.  Still no release for Snickers