I guess I'm just lucky, neither of mine run in Circles, never have.
However, it's sorta odd...
I use a "Hobby" type Breeder, he takes your name and when he allows
a Litter to happen, you get your pick according to the list. What I'm
getting at is, that I had to "take" both mine when they were just over
8 weeks old. When he says they're here, you get your butt over there
ASAP, IF you want to have the pick of the littler.
Anyway (I'm' rambling sorta) My Male Sneakers has Separation Anxiety,
but, MY Female Becca does not ! And, like I said, we got them away
from the Litter at about the same age. I'm just saying that taking
them at a young age, may not be the reason for Anxiety. It's very
difficult to understand, why one does and another doesn't.