Has anyone ever tried to domesticate the giraffe? What were the results?

One problem is what will a herd of giraffes produce ?  Meat, milk, leather, pull a farm implement, ride or just as a pet . Their are better domesticated animals for all these things already . 8 to 10 foot fence to keep them in, they eat leaves high up in trees and can be dangerous .  That all sounds expensive but I would like to have a pet giraffe . Not enough for the expense . 

There was a Giraffe kept by a Ming Emperor for the novelty and and as a totem of prosperity & the legitimacy of his reign (they look like the Chinese Unicorn), and there is speculation that Shivatherium (extinct Mooselike Indian relative) was kept by Sumerian kings for a novelty, but practical, long term, everyday, like for the fur or something, now that's outside possibility (Giraffe tail hairs are used as money by some African tribes, but for such things to have value, by definition they must be RARE)

We tried to sneak them into domestication, but they always had a heads up