Head case

Poor Zorro. He was romping in the yard with Denny this morning and was so distracted by his favorite rope game that he ploughed right into the shed. He hit his head so hard that he yelped, and Zorro never, ever does that, even when he gets a shot or someone treads on his paw. How do you determine whether a border collie has a concussion? Ask him to count to 10? Name the president?