Harrison doesn't so much as flinch when Gabe hits the glass. He just slowly leans back to stand up straight again, that sure smile planted firmly on his lips. He'd found the rawest possible nerve and wrenched it as hard as he could.

"Have a good night, Gabe." Was all he said as he turned on his heel to stroll out of the pipeline. He didn't even bother to use his speed. Just a slow, leisurely walk down the corridor as the main door fell shut behind him.

He wondered if that was what Gabe's need actually was. The way a depressed or suicidal person turned to self harm. Causing pain and forcing that rush of hormones helped stave off the bleak emotions for a little while until they started to consume the mind once more. It would take some research and some further scans to see. But there was something else to be found. Not just jacking into the frequencies of other people, but perhaps something about Gabe's brain wasn't able to produce the correct hormones any longer without getting a blueprint or an example from someone else. Or he could be completely wrong. This was a puzzle that would be best solved by Caitlin, but that wasn't going to happen.

For now, he had video to monitor and erase. He couldn't exactly leave a record of his conversation for his team to find. Once he returned to the main lab, he set up the sensors of Gabe's cell to focus on brain waves and hormone levels. He wanted to see exactly what would happen when the emotional manipulator was well and truly cut off.