If a second conscious head grew out of your shoulders, should you have the right to chop it off?

[Jay520]

Soleron said:

Let's rephrase this as something morally identical: he ingested a spider alien and now a huge spider alien egg is growing on his back.

Pretty sure it'd be OK to kill it then. From the description it's more like that than a "second head".

I don't think this is morally identical. In your scenario, the answer would be too easy. In mine, they may be more conflicted with an answer, because they don't want to end human life.