My other particular favourite is when said school lets 2 or 3 aircraft depart on the same navex within five minutes of eachother. As soon as they've cleared MB, they're on the nearest CTAF frequency bantering on with 30 second position updates. If they are so worried about banging into each other, perhaps just depart with 10 minutes between each aircraft? I don't see the point of the navex anyway. They all clearly have GPS given that the banter includes distances from Ballarat down to 2 decimal places. For me it's not a language issue, they're just not being taught how to manage the radio properly.