@Sarah_Rae - Martina did one at Mile End which was fun and made me realise a fully unconscious unassisted hoist would be almost physically impossible if they are larger than you 
Trying out using ascending the rope is fun, I think Khalid got everyone to climb a tree in the rain on a new members meet? 
Agree on escaping the belay, but using power points rather than the rope makes it a lot simpler. Also the assisted hoist in guide mode to help bring up a less strong/injured but mobile climber is a great tool to have.
Would be good if they covered things like abseiling past knots and joining ropes. Let you practice climbing to retrieve a stuck abseil rope or what to do if it is too short. Munter hitches for dropped devices. Cutting ropes in an emergency. Improvised/natural anchors if you can’t find one at the top.