Herding dogs?

I 'Dogs with Jobs' right now and there is a shepherd dog. Since I turned it on, only a few sheep at a time, but one was a huge flock of sheep and a couple dog is lunging at a couple of times, although they did go where I wanted. Herding dogs always get hurt doing this job?

Yes, they can get beaten and bruised by sheep, particularly rams – but overall the dogs soon learn to leave the fastest way! Breeds of dogs are difficult, but not all seem so – To do the job they do, whether it is raising sheep or cattle, have to be tireless, courageous, intelligent and able to fend for themselves – one of the reasons I love both pastoral group.

Sheep Herding Dog