Jerricho, that's correct about AirServices Australia having a training bond. I think it may be $14 000/year over 5 years kicking in at the first rating.
Fair enough I think - costs quite a bit to train someone. Though (as squibbler points out) would you get a job overseas with less than 5 years experience anyway?
I would hope/expect that if someone wanted to leave the industry altogether that the bond would be voided. You don't really want someone controlling who doesn't want to be there and is looking for ways to leave.