What are your favorite swaps/possesions in comics?

Throughout comics there are many times when characters are taken over by someone/something else. One of my all time favorites though many people didn't enjoy was when doc ock took over Parker's body. I think it's amazing spiderman 15.1 which is actually one of my all time favorite comic. What's yours?

when rape ghost takes over superman

When Lobo possesed a Flesh eating snail in the middle of having sex with another flesh eating snail.

This it not a "versus" thread, Darksaint.