Your nukes

Your nukes can take him out, and some of your heavy weapons might be able to, but I doubt any of your man-portable ones can do it. Until I've had a chance to examine some of your armored vehicles firsthand, I can't give you much of a relative meterstick, and even that depends on what type of combat chassis he has." She nibbled the tip of one finger thoughtfully.
"At the least, he'll mount some light energy weapons, some close-in 'sweeper' projectile weapons, and some battle screen to cover it. Then, too, his brain's organic; that gives him both advantages and disadvantages over a computer. He's creative and intuitive, but his ability to handle simultaneous actions is limited—he can be distracted by overloading his sensors in a tactical confrontation. On the other hand, his weapons are part of him. He doesn't have to draw one, and his electronic systems take care of little things like aiming and firing once his brain decides to do it. Remember that, Dick; one thing Trolls don't do is miss."
"Okay, so he's tough but not exactly unstoppable."
"That's a fair enough summation," she agreed. "His combat mechs aren't as tough as he is, either, and their autonomous systems are inferior to human capabilities. He can handle them direct, but, again, he can't begin to multi-task as well as a true AI, so the more he tries to run at once, the less effectively he can handle any one of them."
"All right," Aston said. "On that basis, does he really have the capability—by himself and out of his present resources—to wipe us out?"
"No," she said positively, and drew a deep breath. A vast tension—even more terrible for the fact that she had given so little sign of feeling it—washed out of her. "He could do a lot of damage, but not that much."
"Fine. Now, is he likely to risk revealing himself or exposing himself to our weapon systems until he figures he can wipe us out?"
"No," she said again.
"Does he know enough about our world to figure out where and how to get his hands on what he'd need to wipe us out?"
"No way." She shook her head emphatically. "He's going to have to spend quite a while educating himself."
"All right. So we've probably got at least a little time before he can act, which leads to my final question. It may sound a bit outrageous, but what's the cruelest thing a Troll could do to the human