There is a saying that Australia's wealth was was built on the sheep's back - "riding on the sheep's back". Early last century, wool exports drove the Australian economy, which was highly protected of course by tariffs.
Both Australia and New Zealand continue to have a large sheep industry where the sheep population often outnumbers people.
Hence there are a lot of sheep jokes. Some of them are rather unsavoury.
Now from New Zealand comes a horror flick about mutant sheep that attack people called Black Sheep.
Hmmm... I like that idea. A must watch.
sheep skin jacket? no wonder the sheep are angry
violence of the lambs