Desensitizing By Zipper

Zipper had drug my sack full of plastic jugs all the way to the house this morning.  J carried it back.  Then, when I went to tie Otoelene up, I heard the plastic rattle  sound and there was Zipper dragging my sack around. 

I use the sack to help desensitize the horses, but plastic stuff is still the one thing Otoelene hates. 

Zipper didn't seem to mind helping. 

I moved it into the shop before I started riding.  I wonder how Draper will take all of this different activity.