"I told him you didn't fit in, whatever that meant," she said. "How do you explain that? That's what started the whole Facebook frenzy. As a mum, how do you explain that to a special-needs person who has worked a job 12 years? That was my biggest concern."
Fellow Dorney park worker Matt Redline wrote an angry Facebook post that went viral about "his buddy Chris" losing his job. It has been liked more than 50,000 times so far, and shared more than 30,000 times.
After seeing how much attention it had attracted, Matt then posted an update.
Speaking of the outpouring of support, Mrs Emery said: "It's been overwhelming. I told Chris this morning how many people love him."
She also proudly updated her Facebook profile photo to a shot of her dapper-looking son.
As for Christopher? Well, he's also been moved by the support he's receiving - even from strangers.
"People were being nice to me this morning. People I don't even know," he said. "It makes me feel happy. It makes me feel happy and proud."
Mike Fehnel, the park's general manager, says the company respects and values all of their workers, and they want Christopher back.
-News.com.au, AP