Yikes, that would worry me. Thor gets so excited at the vet (see previous threads) that I would be afraid that he'd fall off the table in one of his happy wiggle fits. I'm thinking of the stainless steel table that our vet has. On our last visit, when he was going in for his neutering, he kept trying to 'counter surf' the table but his paws would slip off. I can't imagine him trying to stay still on it!
He's always been examined on the floor, even as a small pup, probably because of that wiggly energy.