She snorted, but his luck held.  It held until they heard the sounds of drunks stumbling up the path, fresh out of the nearby pub, and he pulled her laughing again, and topless, through the back alley.  He could feel the luck fade when he fumbled with his key and they were almost caught, and knew it was gone when he realized he'd forgotten his broom in the hurry to get away. Hundreds of galleons, left in the dirt for Muggles.  He stubbed his toe on the stairs and rammed his shin against the frame of his bed.