Oh by the way heard an aircraft being asked to contact Jo'burg radar on the phone after it landed yesterday.
I have also used that phrase in the past. This way you can chat to the PIC and explain what he or his co-jo did wrong (would have to be serious stuff) and maybe have a possitive influence on what happens on the next flight. Or a controller could just fill out a safety report and then the crew can have tee and cookies in the fleet captain's office.
Its all about safety!
PS. Hope my spelling is ok