SFDC recruiter phoned me from the UK, brief question/answer session. Next step: in-person interview with the hiring manager. The hiring manager isn't an HR person, nor has any relevant HR knowledge. Stuffy (stiff, non-personal) interview, despite attempting to convince me that they were a great and congenial "team". UK recruiter NEVER phoned back. EVER. After two friendly reminders. Cut my losses. If they're not interested, simply e-mail a canned response. At the least.