"Hey, Lily, go to Hogsmeade with me?" asked James in potions.
"No Potter." Said Lily rather wearily.
"Come on, just one little date?" he persisted.
"Never. Go away" Lily answered.
James stood his ground "Define never."
Lily groaned in exasperation, "When pigs fly!"
James's face brightened, "Really?" he asked, "So when pigs fly you'll go out with me?"
"Yes, whatever Potter." Said Lily, she was late for Charms.
When Lily arrived in her dormitory, she found a miniature pig flying around her room. There was a note around its tail. "Never has finally arrived. I'll pick you up at six.