Unpredictable meant the person could not get used to it. A pattern, well, the mind could adjust. And that did not lead to breaking. Zach wanted it to go relatively quickly, if to show his skill at it, but he supposed Terrence was right as usual. Breaking someone who broke easily didn't show much skill.
"We have the time to find out," Zach smiled. He didn't think it would take until T left. And if it ever started to look that way, Zach knew he could get very creative and work hard. Goldstein definitely didn't seem to have the training to resist. That made it easier. Zach had been reading about that too, just to be thorough.