These "expectations" have worked well on many boats and many hundreds of voyages. Don't be overwhelmed by this list...we'll help you learn and understand them.
Quick fixes can be easy and inexpensive; later fixes can be very expensive. e.g. the rings on the spinnaker sheet shackles cost 99 cents to replace... if we had lost the shackle pin, the cost would be over $100. Do this even if you think you caused the problem. Also, identify things that look like they are about to fail.
I will always say "no", unless your friend is a trained rigger, a TransPac or Baja or delivery veteran, an experienced sailor, has taken sailing lessons and wants to learn more, has worked or will work on "Impetuous" workdays, or who owns a boat and wants to get more experience. (Or some combination of these.) Your own experience on "Impetuous" counts a lot, as you can then guide the guest, rather than having the skipper do so. Otherwise, please don't ask. Nothing personal, but this has just not worked out well in the past.
Not allowed on "Impetuous", even at the dock. iPods and other personal music devices are okay when we are back at the dock, but not while sailing.