Quote: "When someone "helps," this interrupts my usual checklist sequence and throws me off."
Aboard ship, and in all other
work environments that entail dangers to life and limb, it must be an unbreakable
rule that "you do not help, unless asked" But the corollary is that "orders must be executed promptly and proficiently".
For one example, when I'm working on the cabinet saw or other
power tool, anyone coming into the shop is required to stand, perfectly still and wordlessly, IN THE DOOR OPENING which I can see in my peripheral vision, until I stop the tool and acknowledge the person.
For another, aboard TrentePieds NO-ONE is permitted to operate the capstan UNLESS taught BY ME how to keep fingers clear of the
gypsy.
There are some people that have ineradicable difficulty in evincing the sort of situational awareness that is required to stay safe aboard ship. It is, IMO, skipper's responsibility to KNOW, in regard to every person who comes aboard, whether such is the case. If so, that person is welcome to be a passenger, but it is skipper's responsibility to ensure that he never tells off such a person to do a job that is too dangerous for him, i.e. to know in regard to every person aboard what that person's limitations are.
Taking this argument to its conclusion it is obviously essential to safe yachting that the
skipper can single-hand his vessel. A corollary of that is that I'm always either single-handing or teaching :-)!
TP