 Nancy and Bet leave and Oliver is sent out with the other boys on his first pickpocketing job ("Be Back Soon").Dodger, another boy named Charley Bates, and Oliver decide to stick together, and when Dodger and Charley rob Mr. Brownlow, a wealthy old man, they run off, leaving the horrified Oliver to be arrested for the crime ("The Robbery").In the Three Cripples pub, to help take her mind off of Sikes's neglect towards her, Nancy strikes up an old tavern song with the low-life ruffians, ("Oom-Pah-Pah").