Tricia wrote:The real question is...if he showed up as a half-squirrel...what conclusion could they draw *besides* him being a natural shapeshifter?
Frankly, they'd be stupid to draw any sort of conclusion from so little evidence, especially since Grace probably indicated that her boyfriend was human when they talked on the videophone.
Also, I fully expect that they would have come across CMDs, or information about them, during their psychological evaluation, especially since we know that their education was supervised by Tedd's Dad's department and involved at least some direct contact with pure Uryuoms. So they would at least be aware that there were other ways to change form than to be born with the ability. In fact, Vladia's existence alone should be plenty of evidence of that.
Anyway, the desired effect could just as easily be achieved by Tedd kissing Grace in half-squirrel form in front of them. Or better, when they appear to think themselves unobserved.