Jack was still laughing when the Doctor protested, and laughing too much to respond in any way other than waving a hand in his direction and laughing even more. Tears in his eyes at just how amused he was.

Luckily for him though (perhaps), his subconscious was listening, and he suddenly straightened his face and looked over, "By the what?" he said before glancing down and letting out a yelp of his own, kicking at the mostly-harmless insect that was inching it's way towards him.

He shrugged his shoulders back and pulled a face. Well that wasn't funny!