Bivi-ing difficulties

My first attempt at bivi-ing last night ended in disaster when a herd of cows with very young calves and a bull decided to evict me.

The next section had Shetland Ponies so I took my chances and bivi-ed under a tree they obviously use as a shelter. At 2.30am I head the clip clop of little hooves and had to frighten them off 5 times before they gave up and left me in peace.