Amy entered the console room to find the Doctor gleefully setting coordinates.
"Where are we going?"
"To visit a friend," the Doctor said, "he's blue."
"Oh, I'm sorry to hear that."
The Doctor looked up in surprise. "Oh, no, not blue melancholy, blue pigmentally."
"Pigmentally? Is that a word?"
"Dunno. I once knew a doll that was pig mentally. Nasty little bloke, he shot a dragon at me."
"A dragon! Weren't you crushed?"
"Nah, we hid behind the table."
Amy stared at the Doctor, then scowled. "I wish you'd quit pulling my leg."