How does the poet develop theme?

In 150 words, explain what northup (in twelve years a slave) could have done to prevent being kidnapped by hamilton and brown.

He had fished in the river since ten years and he was a good fisherman. he know where to found the slim sliver chilwa fish, a big beautiful mahseer and the long moustache singhara. he know where the river was deep but where it is shallow; he knew which baits to use - which fish like worms and which liked gram. edit the above

"the beginning of the massai" which excerpt best justifies this conclusion