"You're sure you want the pony, rather that nigh-unlimited wealth and power?" the evil entity asks.
"Oh, yeah," you affirm, "I've always wanted a pony."
"Yeah," the demon says with audible resignation, "everybody asks for a pony." The thing snaps its terrible fingers and a pony appears before you in a puff of flame. You jump up in jubilation and prepare to mount your steed. You're just swinging your leg over the pony when you wake up.