At work and at play are two separate lives and should be treated as such.
So a pilot gets a parking ticket. Well sack him as his an obvious rule breaker!!!
Another likes to go rock climbing, a sport many may consider borders on the suicidal.Well better sack him to just in case he brings those suicidal tendencies into the flight deck.
Just where do you draw the line.
At work a pilot(or anyone else)should be judged by their conduct, behaviour and standard as one thing.
Outside leave the law and legal system to deem what is appropriate behaviour just like it does for everybody else!