Get your fingers out of your mouth

Little B started sucking on his fingers.

"Little B," said Simone for the umpteenth time. "Get your fingers out of your mouth."

Little B removed the offending fingers.

He resumed the finger sucking a few moments later.

"Little B. Get your fingers out of your mouth."

Little B sighed the long suffering sigh of the truly downtrodden. But he removed the fingers from his mouth. He waited a few moments and his fingers, seemingly of their own volition, crept back toward his mouth.

"Little B, get your fingers out of your mouth."

Little B glared at Simone, who was, she thought, doing a superb "fingers in mouth alarm" imitation. Then he bent his leg and licked his knee while staring defiantly at his mother. "It's not my fingers," he interjected before Simone could object.