Plot hole: Just after Ellis tells Mud about Carver beating up on Juniper, he gets mad and punches the ground and then they start gathering up the stuff Ellis and Neck brought to take it to Mud's boat. They are right on the shore of the river and can see in most directions. Two people are sitting in boats out on the river, just watching Mud and the kids. Very much in visible range and they stand out, one of them even wearing a red shirt. Yet Mud, despite being on the run from cops and bounty hunters, never even notices the two very obvious boats out in the water. If he's running for his life from that type of people, he would have an eye out for them. Not even Ellis and Neck notice them and they just came on the river, and one is Neck's Uncle Galen.