Abstract: A cover for a control mechanism. Activation of the control with the cover in place requires more strength than a child has; thus a child cannot, as a rule, activate the control. Concurrently, activation of the control with the cover in place does not require more strength than an adult has, so an adult can activate the control. The cover may be used over a release control on a seat belt buckle. The portion of the cover overlying the control is generally deflectable, so that an adult may activate the control through the cover. Regarding deflectability of the cover, it is rigid and stiff enough that a child may not deflect it enough to activate the control, while being simultaneously sufficiently flexible and resilient that the control may be activated by an adult by deflection of the cover.