Boss: "You still coming in tomorrow right?"

was just going to ask the same thing, how was he after, what changed, he get calmer, smarter, angrier?

The central cortex, where breathing and motor control are regulated, is down toward the base of the skull. Time will tell with regards to his personality, though. The surgery was only a few days ago. He is doing very well: https://www.cnn.com/2019/04/16/india/india-man-iron-rod-skull-intl/index.html

But with him his personality was completely altered... I hope they study the effects on this guy as well...