Invisible Man's Grocery Store Fiasco

Once Upon a Time an invisible man decided to do his grocery shopping as he strolled through the aisles he relished the freedom of no one seeing him however chaos ensued when he reached the checkout the cashier's eyes widened as she scanned the items sir your cart is empty she exclaimed The Invisible Man chuckled and replied no it's full just look closely confused she looked again only to see nothing suddenly a bottle of milk floated up she gasped shouting you can't take those he replied why not they're my utterly invisible purchases the entire store erupted in laughter realizing the Invisible Man just couldn't milk it any longer