Who's In Charge?

I was cycling round the Outer Circle in Regents Park today. As I cam past the zoo I saw over the hedge a life size mock up of a ...giraffe. OK, I thought, yes, this is a zoo but that cant be a real one. So I stopped to check and to my astonishment there was a pair of giraffe standing outside their house. 

I love giraffe. When I went on safari they were the animal I was least terrified of. Much less scary than leopard. I certainly wouldn't have dared take any pictures of those in the wild. I left that to other travellers much braver than me.

This one was keeping an eye on the workman. Or was it the other way around?