Glitch observed the procedure with curiosity. He wasn't precisely sure how the screwdriver worked (or what it was or...oh there were a zillion of other questions he wanted to ask) worked but he suspected he wanted one for himself. It lit up and made noise, what more did he need to know?

All right, knowing that it was able to verify the contents of his noggin in a polite and non-invasive way was nice. "Well, I did say as much," he remarked with a small smile. "Involuntary non-therapeutic hemispherectomy."