Rainbow Dash has a prophetic dream about chickadees. It's all rather stupid though. A 50 minute story. Also, Gallifreyan technology and prime numbers and dumb jokes appear. Story 4 of Doubleshotober.
Pinkie's Cocaine dealer is an anthropomorphic cat named Thrilla Vanilla. Things don't go too well for him. A cursory discussion of Equestrian drug culture and policy also occurs. And also interspecies breeding.