Bristling

To rise or stand erect, like bristles.

Abound, to have an abundance of something

(with at) To be on one's guard or raise one's defenses; to react with fear, suspicion, or distance.

"The employees bristled at the prospect of working through the holidays."

To fix a bristle to.

"to bristle a thread"

The act of one who bristles.

Having bristles.

Showing anger.