Identify the cause and use positive reinforcement for the "quiet" command.
Provide appropriate chew toys and supervise until they learn what's acceptable.
Teach "off" or "down" commands, ignore jumping, and reward for keeping paws down.
Consult a professional and use desensitization and counterconditioning.
Gradually desensitize departures, create a calm routine, and use puzzle toys.
Stick to a schedule, supervise closely, and clean accidents with enzymatic cleaner.
Teach loose leash walking with positive reinforcement and consider a no-pull harness.
Gradually expose to triggers, consult a professional, and consider vet-prescribed medication or supplements.