Is it bird? Is it a plane? Is it a cow?

We took a long walk home after dinner last night. As we were walking near the Charles, it was dark out and Paul says, "what is that over there in the field.....is it a cow? It moved." And I look at the nice open park along the river and realize he sees a park bench, standing still. It is not a cow nor a bird. I cracked up. I think Paul needs to really go get a new pair of glasses.