Just been to visit them at the zoo. As I expected it's asleep. Sleeps 16 hours a day. The male one's ill so can't be on show. So we spend 10 minutes in a room with a video of it actually moving whilst it sleeps in a corner.
Maybe there's a reason it's only in season for 2 days a year? God's trying to tell us something surely? 
One horned Rhinos on the other hand are the dog's bollocks. And if you hear one fart you're in for a treat. Fantastic!