Horns are a dangerous weapon. You can't just wave it around and use it willy-nilly. You need to be careful. You must use your horn safely. Anon goes on a journey to ensure that horns in Ponyville are properly protected.
Rarity lived her whole life dreaming of Canterlot, but sometimes the sweetest of dreams can strangle the real, and ponies can get hurt in the process. Rarity just wishes it hadn't been somepony who loved her.
Twilight has an interesting conversation with Sparkler when she finds her sitting on a park bench all by herself, looking very depressed. To Twilight's dismay, SHE'S the reason Sparkler is so upset.