I have not. I would think one of the big challenges with that, sir, would be the congestion on the roads. They're very conscious of the number of people on the road at any one time. They do not allow bicycles. They do not allow even—there was one exception made for a wheelchair. A Dutch soldier was wheeled the whole way by his teammates. There are cobblestones. It's very crowded, very congested, and very noisy.
I think it would be a real challenge for a service dog to participate in that, if they were allowed. I'm not sure the organizers would allow that.