Don't have a clew what you are talking about!
We (I) often take out novices who are along for a joy ride, then we (I) ask them to cleat lines or hand them to me etc without any warning or training. That's why my mainsheet is blue, main halyard blue/white my spinnaker halyard and topping lift are green and white.
yes, dock lines run through chocks, not thingys, the boat has a head, there is a mainsail and a jib. If the metal thing hits you in the head, it goes 'boom'.