I need a rant about steppedog he was a little bugger this morning.
So, 2 minutes walk from our house is a green grassy/park sort of area with trees and a footpath running through. It is the first stop on every single walk, we let him off the lead, he does 2-3 poos (handy bin just there) and we walk through the park and off down the footpath. He knows this patch so well, and knows perfetcly well how to behave there, it is the single most familliar place outside of our house and garden.
The trees are full of squirrels, and sometimes he sits under a tree and barks a few times, I walk on and he abandones the trees and follows.
This morning, I let him off the lead and he ran to the squirrel tree, and barked and barked and barked, and wouldn't stop, just went nuts at the squirrels. I couldn't call him, couldn't catch him, couldn't trick him into following. I tried walking off and he didn't follow, I tried being nice and up beat Come!!! and being very firm, and NOTHING would make him leave those trees. If I approached him, he circled round the tree the other way.
There are houses overlooking this area and one lady came and stood at her window and watched with a frown as I tried to get him.
It wouldn't have been so bad except he barked and barked and barked (he actually rarely barks at all normally)
When he FINALLY allowed me to corner him, he came towards me and lay down flat on the floor with his head on his paws. I have only seen he do that once before, when he was chasing one of our chickens that had got out, and I was going nuts trying to stop him.
But as soon as the lead was on, he bounced up ears up, tail wagging, looking up into the trees for more squirrels.
20 minutes I was chasing him round those bloody trees.
Instead of going straight to the woods, I mad ehim do 20 minutes strict lead training on pavements first. And I was so cross we did the whole 20 minutes without one treat, just me being firm and grumpy. (he walked beautifully though, knackered probably)
When we were in the woods, I called him to Come, about every 5 minutes and he came every single time. 
mortified.