Dog owner Amy Strawn had left a mirror on the floor one day in May 2009 and walked away.

When she returned, she spotted her English sheepdog puppy Simon excitedly circling the mirror.

It had spotted "another" puppy in the mirror but couldn't figure out how to get to it. It tried so many ways to get close to this potential playmate.

In the end, Simon gave up and simply sat staring uncomprehendingly at its new "buddy". Watch Simon and his antics