We have a severely autistic boy of nine years old in our street, who adores Tess. He is very focused on movement, so the fact that she retrieves the ball and drops it at his feet to go again, delights him. Tess is not fazed at all by his sudden movements and noises, but Liza still is a bit more cautious. I think he likes Liza, but he is a bit intimidated by her exuberance...
I think it proves what a good therapy dog Mercy will be, if she already shows ability to keep her 'being young and happy ' in check. In time, she will be perfect, for your son and others!

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