The wild beast,
paces up and down his window,
he is fully capable of jumping the fence,
but why doesn't he?

Is it because he knows his next meal is coming from the keepers?
Is it that he likes the attention from the terrified people looking in?
Is the reason that he is to naive to think of such a thing?
Is it he has no reason to and he doesn't know any better than just pacing?

Or could it be that he understands the terror of the keepers who would lose him?
He just wants peace and he knows there would be no freedom,
the keepers would always be right behind him,
so he has no choice but to pace in his man made cave.