And because it is morally good that you make the effort, even if there will always be a margin for error. (And in my experience, you yourself do seem to succeed in being clear really rather well. :-)) Part of the problem with that cartoon is that the cartoonist and editor clearly haven't thought very hard about it, or they'd have gone "hang on, erk, that looks like it could be a coconut, yikes, let's do something different...".

The author is dead, as Barthes said. It is sad, but don't let it de-spirit you. *hugs*