Question of The ransom of Red Cheif

If you are kidnappers, how would ensure that you succeed?
Summary of the ransom of Red Cheif

This story tells of a young boy held for ransom by two money hungry criminals, Bill Driscoll and Sam Howard. The two men are fugitives who have escaped to the Deep South searching for an easy way to get their hands on $2,000 they need in order to launch a land fraud scheme in Illinois. They set their sights on the quiet town of Summit, Alabama because of the philoprogenitiveness - love for one's own children - that they believe is common in rural communities.

Bill and Sam decide they will kidnap the son of an important citizen named Ebenezer Dorset, demand a ransom of $2,000, quickly collect the payoff, and be on their way. However, once they actually kidnap the boy and make their way to a hideout in the nearby hills, their plan quickly begins to unravel. Their young captive, a malevolent, redheaded brat who calls himself "Red Chief", actually enjoys his stay with his kidnappers, and thinks he is on a camping trip.

Red Chief proceeds to drive his captors to distraction with pranks and demands that they play wearying games with him, such as pretending to be a scout and using Bill as his horse. Bill and Sam are soon desperate to be rid of the little terror; they lower the price to $1,500 but still receive no answer. When they receive a reply to their ransom letter from Red Chief's father offering to take the boy off their hands for $250. But when the men bring Red Chief to his home he doesn't want to leave. He then tries to stay with the two kidnappers but is held back by his father. The two kidnappers run away as quickly as they can.