Door bells

I have trained Bender to ring a bell when he wants to go outside. He has become rather proficient at doing so. I had to laugh the first time he rang the bell and I opened the door, only to have Bender sit politely while Zach came back in. Bender has now hit the bells three different times to let me know that Zach was ready to come in. Bender simply sits at the side of the door (on the inside) waiting for Zach to come back inside.

I am continually amazed at how smart this dog is!