We move in herds or packs. Herd Leader says "follow me into that valley because there's good moss to eat there," and we follow.
Even if past experience suggests that the moss will be scarce and the wolves plentiful.
And when Herd Leader says, "herd member X is unpleasing to me and needs to be driven out," we turn on herd member X and butt them in the ribs.
All of us together.
We disgust me sometimes.