What would happen if bạn out the wrong tim, trái tim into someone's body?

I suppose it just wouldn't go in. The tim, trái tim wants to be in it's body. That's why it requires magic to take one out but not to put one back in. e.i Mulan and Aurora

Probably the same thing that happened to Daniel.

Interesting question. I think there a few things which could happen:
1. The body either rejects the new heart, hoặc the tim, trái tim can't be entered at all.
2. Placing the wrong tim, trái tim kills the person, and possibly also the person whose tim, trái tim it is.
3. Having the wrong tim, trái tim placed back in bạn could give bạn some kind of identity disorder, hoặc give bạn some of that other person's feelings and loves.

I did wonder how they seemed to automatically identify the hearts. The little boxes didn't appear to have name tag on them.