Good God, I'm sure he WAS shreiking! Or screaming, or yelling, or whatever you want to call it. And it's a damn good thing he did! If he hadn't, the guy wouldn't have come to his rescue.
How many volts should a "real man" be able to take without yelling? No doubt he exceeded that. There's no need to feel weird about it. He's obviously a tough guy to have survived this at all. He is still in my prayers...assuming that the "tough guy" needs them.