My translation currently stands as:
"That's right. You must hold responsibility for your words, right?"
"Mito-san is teaching me to become so that humans are not to be trusted (lit. not-able-to-hold-a-promise-seeming)"
I can't understand how 「なるなって」 is used in the sentence above. At face value I'm taking it to mean 'becoming to become'. For example, 医者になるなって would mean "I'm only just finally reaching this long-awaited goal of being a doctor" (lit. I'm becoming to become a doctor).
Can anyone shed some light on how 「なるなって」 is used?