i know i'm fighting an uphill battle against breeding and instincts here, but if anyone has some advice on how to manage herding in the little red heeler i'm "fostering" right now, it would be appreciated.
today at the dog park, "warren" was herding varitek every time he picked up more than a walk- nipping at his heels, pulling out his legs, etc. even after tek gave him a huge head butt that knocked warren over, he was right back at it (i know, i know, that's what he's supposed to do[

]) but poor old tek just wanted to run around! i finally had to leash warren so i could play ball with tek.
so, i would like to try to manage this because i'm concerned it might affect his adoptability- his social skills at the dog park are maybe going to get him in trouble.