Eric shook the hand, and while he didn't mean to, his hand tightened. Maybe it was something the guy had said, maybe not. Actually it was. D wasn't overly joyed by the idea of what exactly had been shared with the young man. Eric, in fact, looked a little confused because he could feel his body tensing a little more than it needed to, and he also knew that he had a good bit of D's strength.
"Dude!" His free hand grabbed his own wrist. If he'd been watching this, he'd find it funny, but D was well on her way to warning the guy into a broken hand - he'd never be able to play the piano again! "Let go! Let go! That could be his pitching hand, man!"
Yes, Eric was talking to himself. Thankfully, the vice grip didn't last long, and yeah, the comic book clerk might have been overreacting; but that was a new experience. He'd never used the strength on anyone; D'd certainly never done that.
"Dude, I'm sorry. Josh. She, yeah, let's avoid the whole interesting history. D's never done that. Weird. I'm Eric. Sorry, man. I'll discount those a little more than usual, kay?"