If Goku magically became evil...

[DBZAOTA482]

People notice he's not himself and he's wrecking s***... who tames him?

<div class='spoiler_toggle'>Spoiler: click to toggle</div><div class="spoiler" style="display:none;">I want Chi-Chi to be the one... a greater emphasis on her importance to Goku would be nice. After all, she was the first he happened when he was losing to Beerus.</div>

 

[Let's Go Fearless!]

I don't understand the above but if Goku somehow becomes evil then that means either Gohan or Vegeta is gonna stop him. I doubt Toriyama or Toei would turn Goku evil especially now that the Black Arc is over and the whole Evil Goku thing.