show a little backbone will ya?
did jock not know what what kind of man indy was or was he just joking?
shareHe's one of Indy's longtime buddies and irregular contacts, so he knows Indy to some extent. His remark suggests he did not care that Indy had a phobia towards his big pet snake. It's just Jock teasing Indy with mild indifference.
~~/o/