The question was closed because it's more about the use of how electronics work and not about electronic design. While asking about electronics is not explicitly off topic the question needs to be well documented and have proper research and be phrased more as a design question. For myself, I'm having a really hard time following the question and the paint plot (prefer a schematic, use the embedded circuit tool).
This type of question has already been asked:
why neutral does not shock. how can a neutral be neutral in ac current?
so I would think it's more of a duplicate.
electricitytag. I have voted to re open the question. Since an accepted and twice upvoted anwer exists and the answer looks reasonable. \$\endgroup\$