An example of an ethical spell that you would create for magickal protection follows. Notice that the intended party is not in any way having free will removed. This type of spell is appropriate for a time when someone (Joe) has made poor decisions affecting others (Jane) in a detrimental way. Here Joe has sent a message on a psychic level that he needs to gain some perspective on his actions towards Jane, and until he does so, he will have the protective energies of the spell caster to intervene in disallowing Joe to harm Jane further, with the implied enjoinder that he will be called to task energetically otherwise for not acting in a rightful way:

You Joe have piqued my rage
Cross not this bridge to Jane
Upon it I stand in all my courage
Stand hither and reconsider