The SockCreator class now just calls it, unconditionally, rather than
inspecting gid/uid attributes of Bob.
at a higher level this is basically an internal refactoring: no externally
visible behavior is changed.  And, it's a matter of taste in some sense,
but since we are going to do a bit more work for this task, and it seemed
too intrusive to refer to attributes like gid/uid directly, I chose to
introduce this change.