Nark and All,
I have read the following as a "Newfie" joke, and also as a "Blonde" joke. A father draws a circle in the sand around his son and says don't go out of that circle until I tellyou, Then there comes various punch lines.
But then, reading old Sufi traditions it relates the same, a father draws a line around his son in the sand, and tells him not to leave the circle until he says so.
I believe this is a riddle, the father does not come back and tell him to leave, he has to rebel against the sayings of his own father.
Nature does the same, the fat baby robin, flutters to the ground, and sits there, the parents remain at a distance shrieking wildly, warning him to get going, warning that the young one is in a precarious position. You won't find that young robin there on the ground the next day.
What Nietche said is also expressed in the Bible. Jesus had to leave his disciples, they had to realize that he had given them the teachings that they could stand on their own two feet.
Your comments about betrayal intrigue me, and opens up new avenues of understanding that I have to explore before commenting.
belbab