After discussing Seth Rollins embarrassingly describing getting BTFO by a 5'4 fat manlet as "terrifying" Ric Flair then described the toughness of Harley Race, Brusier Brody, and Dick Slater. He later added...
"Going back to tough guys, one of the last tough guys in the business that I can think of is Kevin Nash. You never saw anybody pick on Kevin Nash. The Steiners didn't do anything to him. Nobody did. Kevin Nash is a tough kid too." - Ric Flair
https://youtu.be/5ZAjlSv8Wes?t=853"Tough guys of that era? I'd say the two toughest are Kevin Nash and Ron Simmons. Kevin just plain tough. Never took shit from anyone. Nobody fucked with Kevin Nash." - Ric Flair
https://youtu.be/eodsZ3AX5VQ?t=301