I would imagine that anyone who read the profile in The New Yorker on Lenny Dykstra the other week (and it's quite the read) came away with the impression that he might be a bit intense - what with the screaming at his various TVs and forcing waiters to tell him "you're welcome" and all. The700Level has video of the interview Nails did with HBO's Real Sports with Bryant Gumbel.
He's got quite the menacing crouch (note to ed. which might result from his back condition!) in this interview, almost as though he's getting some Rick Dempsey flashbacks if he gets pressed a little too much. I liked him better when he was George Nelson in O Brother Where Art Thou?