Fun and Self-Flagellation (This Kid Goes To 11)

My six year old son Ian has recently taken up a new habit-- he does it when he is being chased and needs to accelerate in order to escape being tagged or tackled: while he is running full-bore, he whacks himself in the butt-- with both hands-- in order to generate otherwise impossible speeds . . . and his logic-- which my seven year old son totally buys-- smacks of the Spinal Tap "these go to 11" scene.