Dominance is enforced by lunging, chasing, cuffing, grabbing and biting. While bulkier to carry, rigid handcuffs permit several variations in cuffing. Females have been observed grappling, cuffing, and biting males during copulation. In the brain, mild to severe encephalitis occurs, with lymphocytic perivascular cuffing. Kerley lines, cuffing of the areas around the bronchi, and interstitial edema. Jesse breaks Todd's neck using the chain cuffing Jesse's hands, and Walt kills Jack. The officers are all occupied with cuffing Electro and Eddie escapes. Eddie is in, allowing him to escape while the officers are occupied with cuffing Electro.