Flint couldn't help but laugh a little in his seat. These imaginary people where definitely different, or hell maybe they weren't imaginary. At least not all of them.
He heard them talk about mental illness and lies and truths where spurted. A few people that didn't exist even answered him making Flint even more confused of who was real and not.
"When it comes down to it" Flint said to thin air. "Who's to say what is real or not.." This was Flints catchphrase, the brain interprets everything we do. We know it can be made to sense things. Such as what happens with dreams. And so how do we know that anything truly exists?