Then kill the goats.
Not always(Usually never) an option, especially around the R20 leve camps. I can do most all of the leves just fine above 12, but there's no way in **** I'm killing a goat at that level.
In a way, it's kind of a cool thing, goats all curious about what you're doing(It is kind of what most animals would do). But they rarely want to stop staring, and will follow for far to long. Can really ***** with targeting, and of course prevents AOE use most of the time. I do leves with an Archer friend, and he has died so **** many times because of goats getting between Puncture, or wandering to close during Helix. It's just a hassle to deal with(for both of us).
Their "Interest" animation is the same as their "engage" animation as well, so sometimes, if you aren't paying to much attention to the log, you can only find out which is which after you are on the ground.
This all applies to Opo-Opo's as well...