I think it was wise not to engage in a handshake. If he had, the guy would NOT have let go. It would have turned into a wrestling match and would have been all over the fake news as Kavanaugh assaulting this Dad.
https://vimeo.com/user87970289/review/288270349/03d579520f
Kavanaugh Avoids Shaking Hands with Father of Shooting Victim CNN Slanted Interview with Guttenberg