No chance for fate; it's unnatural selection

Okay, that didn't sound too bad.  Shylock didn't think of himself as an addict; an addict was someone without control and Shylock had control. But it was entirely possible Robert wouldn't see things that way.  It was entirely possible he'd end up in a locked ward.

He rolled his shoulders as some of the tension left them. He thought he was beginning to see how Robert's mind worked and maybe it had only taken him so long to figure it out because the Healer really was such a Gryffindor.  Shylock would wager that if he did as he was told, Robert would make things as painless for him as possible.  His own parents, on the other hand, would have simply told him what he was required to do for whatever little experiment they'd set up this time, and expected unquestioning obedience.

He shrugged in response to the question. It wasn't precisely a trivial worry, not to him.  Saying it aloud still somehow managed to make Shylock feel ridiculous.

"Just visitors and things," he fessed up.  "Whether I can ban my brother from seeing me."

Although, that would probably turn out badly if he actually went through with it.