They're not former. They were just sent to a different hospital. Maybe they'll be working with Willie Kennedy Smith.
They weren't joking, they were getting even. They were tired of all the suspicious looks they were receiving (oblivious that we ARE at Orange Alert status, one day after 9-11) and they wanted to GET EVEN by scaring & intimidating everyone around them.
Remember that Motive counts in a court of law. This was not a "prank", it was a deliberate act, born of malice, designed to spread fear -- an act of terrorism.
These three should be shown the border.
Semper Fidelis