These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ethnic Scrappy: Ninja Ninja Is a likely an aversion of this. He is the repressed side of Afro, also voiced by Samuel L. Jackson and thus is intentionally different. Also, he is often more help than harm, as in the anime it is hinted that Afro would be lacking sanity if not for him.
Moral Event Horizon - You may think that it doesn't get much worse than using a young boy as a human shield against a group of ninjas, until Afro uses the dead boy's crippled sister as a shield against a man toting a minigun.