This saddens me.  As much as I hate to admit defeat, I am going to surrender Thatch to The Animal Project.  I just went to the bathroom to check on him and he escaped.  He's now back under the bookcase where he hid for a day, Annabelle's tracking him, and the hissing and screaming have begun.  This poor baby is never going to socialize, I cannot keep Annabelle away from him, and I sadly have no time to devote every minute to this mess.  Unless something really positive happens, he's leaving, and it breaks my heart to write this.