I think he might have ADHD. His stutter was mentioned in another thread too.

I was very much like Zay, having a stutter and couldn't articulate, especially when under stress or in front of a public setting. I would actually shut down. Another thing about ADHD, is our inability to self-regulate emotions. Not that we're naturally aggressive or angry but yet have a hard time finding coping strategies.

Zay and I also share a rough up bringing, which in turn exacerbates our ability to handle rejection and those yelling/shutting us down.

Once I recieved treatment (medication & therapy). Life started making more sense, and a lot of these symptoms I mentioned became more manageable.

However, at the end of the day we don't know these people. We only know what the producers want us to see... so who knows.