It.. depends what they are. A human, I would feel like something was missing. A pet... I don't know. Sad but nothing wrong with me. I've gone through the pet one.
What would you do if you suddenly became Alice and went through a world of Wonderland?
I'd wait until a school of fish pushed the ship up.
What would you do if your 'best friend' started lying to you, stealing from you, trying to be better than you, copying you, stabbing you in the back (figuratively) and trying to manipulate you to do what they wanted?