Theo knew arctic research was dangerous. He didn't know those dangers involved getting sucked into other worlds, changing into a bird, and having to somehow find a way home. Turns out it was more dangerous than he thought.
You've had your eyes set on Applejack for a long time. Maybe your best friend Rainbow Dash can help you earn Applejack's heart. You wouldn't see why not. Besides, she's your best bro. Right?
Song and magic are two parts of the same whole in Equestria. When Rose saw Anon, it was love at first sight, and as if to shake any doubt, she heard their song. It was the happiest moment of her life. Until she realized he couldn't hear it.