One example embodiment includes a retractable leash for restraining an animal attached to the retractable leash. The retractable leash includes a housing and a spool in the housing. The retractable leash also includes a leash, where the leash is wound around the spool and at least a portion of the leash can extend from the housing. The retractable leash further includes a cam, where the cam is configured to be forced outward against the housing when the spool rotates at a high rate.
