I can honestly see this happening. McGonagall is just one of those people we love so much, but she is still extremely scary.
And come on, we all know Death would be scared of her. She could fall off a cliff and survive-- others would call it a miracle but it would totally be because she scared the reaper away.
People are going to come to Hogwarts in the future and she's going to be like, "Oh, you're a Weasley. I taught your parents. And their parents before them, and their parents before them, and their parents before them, and their parents before them..."
I'm actually imagining that happening right now...
Everyone's just gonna assume she's immortal for goodness sake. Then again, if Death is scared of you, then you practically are immortal.
So I think what we've determined is that Minerva McGonagall is the true master of death. What's that? The Deathly Hallows make someone a master of death? Minerva McGonagall doesn't need that.
What do you think of think of this post? Can you imagine all this happening? Let me know in the comments!
Hope you have an enchanting day/evening/night,