you.”
“Warning received. Now let’s get back to Derrick.”
“Okay. Why not? He is my favorite subject, after all.” She stared at her roommate. “So give me some advice. There has to be some way to spot a psycho.”
“Psychopath,” corrected Erin.
“Yeah, I get it. People use psycho to refer to crazy. You told me. But whenever I say it, just know I’m referring to the people you study, okay? The evil but sane people. Anyway, how do you spot them?”
“I could tell you a possible way, but you aren’t an expert. You’d probably misdiagnose most of the time.”
“You’re probably right, but tell me anyway. Now you’ve piqued my curiosity.”
“Okay. You know how people use their hands when they talk? Humans are wired that way. Even when we’re on the phone and the other person can’t see us, we do it—although we don’t ever think about it or realize we are. This gesturing increases when we’re trying to get across a difficult concept. Next time someone you’re talking with is searching for the right word and it’s on the tip of their tongue, watch their hands. They’ll be more active than ever—as if these movements will help them find the memory or convey the meaning. Am I making sense?”
“Perfect sense.”
“Good. And if you’re using a second language that you aren’t as comfortable with as your first, your hand movements increase in amount. Probably for the same reason. Well, emotions are a second language to a psychopath. They don’t really have them. They know the words but they can’t hear the music. Hook an EEG up to a normal and their brains respond differently to a word like chair, and an emotionally charged word like torture . Not a psychopath. Their brains react to these words in the exact same way . They’re like color-blind people who teach themselves to fake seeing color. So when they’re trying to voice something emotional they move their hands more than normals would.” She paused and raised her eyebrows. “Like I said, emotions are a second language to them.”
“Fascinating,” said Lisa. “And scary as hell. But you’re right. This doesn’t help. I have no idea how much an average person uses their hands. I mean, I’ll start paying attention now, but I’d hate to kick Derrick in the balls because he spoke with his hands.”
Erin laughed. “I’m sure Derrick would hate that also.”
“I know what we can do,” continued Lisa. “If Derrick and I start getting really serious, you can put him in your MRI machine and scan his brain. Then we’d know for sure.”
“Haven’t you already told him what I study?”
Lisa frowned. “Yeah. You did come up. The mystery roommate. So you’re saying he’d probably figure out that’s what we were doing. That he might not appreciate it that his girlfriend thinks he might be a psycho.”
Erin opened her mouth to respond when her phone vibrated in her pocket. She pulled it out and read the caller ID. “Sorry, it’s my boss. I need to take this.”
The phone conversation lasted less than a minute, but all the sunshine that this discussion with Lisa had let into Erin’s life quickly vanished.
“Erin?” said Lisa worriedly, not having to be an expert in body language to know that something was very wrong.
“Sorry, but I have to go,” said Erin, shoving the last of her sandwich into her mouth and chasing it down with a long drink of water.
“What is it?”
“Seems the dean of my department wants to see me and my advisor in his office,” she replied. “Immediately. If not sooner.”
“What about?”
“I have no idea,” replied Erin. She frowned deeply and then added, “But, apparently, he isn’t a happy camper.”
4
ERIN AND HER thesis advisor sat before the desk of Dean Richard Borland in two brown leather chairs that looked stately, well padded, and exceedingly comfortable, which only went to show that you couldn’t judge a chair by its appearance. Whoever had designed the