private void OnTriggerEnter(Collider other)
    {
        IForkable forkable = other.GetComponent <IForkable>();

        if (MyGrabObject.Grabbed && _grabbedObject == null && forkable != null)
        {
            other.enabled  = false;
            _grabbedObject = (GrabObject)forkable;
            _grabbedObject.Grab();
        }
    }
    void Grab()
    {
        _isGrabbing = true;

        if (_grabables.Count == 0)
        {
            StartAnimateOpen(1);
            return;
        }

        _grabbedObject = _nearestObject;
        _nearestObject.GetComponent <Outline>().color = 0;

        _grabbedObject.Grab();

        StartAnimateOpen(0.17f);         // eventually base this number on a value in GrabObject
    }