This one's from Big Brothers, Duke. Obviously the relationship starts before the vignette.
Patience. The whole point was to teach Bo how to hold his horses for a little while, to slow him back down to Hazzard speeds after the circuit.
Bo, of course, didn't know this, which meant no one else did, either. They just thought it was wonderful of Luke, real mature, to want to help an orphan boy. And if the rest of the town wanted to assign him altruistic motives, who was he to argue, really?
Besides, he was too busy arguing with Bo. All the time. About stolen cars and stolen clothes and stolen hubcaps (with a brief intermission for stolen watermelons), and patience, really. A reminder that he couldn't have everything right now, just because he wanted it.
Which was a change from the circuit, where they'd been kings. Eight career wins in the eight short months they'd been away. Better than the victories, they discovered, were the parties that followed. And after a month or so, they worked out the post-party celebrations. Because wherever they were for any given race, they had their own space, just the two of them. It had been lonely at first, and that might have been the main reason they finally learned to lean on each other for absolutely everything.
They knew coming home would change all the rules. Wanted Hazzard and freedom both, and knew it was impossible. They'd had a rhetorical discussion about it, all the what-ifs. Decided that they loved their family enough to want to come home, but didn't trust them enough to let on about the finer discoveries of life on the road.
Which meant it was no longer a matter of Bo just rolling over and taking what he wanted.
The straying, motherless boy was meant to teach Bo some patience. It didn't work. Bo took every ounce of his frustration out on a (pain-in-the-ass) orphan. It wasn't what Luke had in mind.
The kid surprised them, though. Learned to like farm life and even to like the amazing bickering Duke boys. Stood up admirably to the perils of Hazzard County. In the end, Bo did a good job of teaching the boy right from wrong.
Which was why, within the hour of dropping the borrowed orphan back in Capitol City, Luke found a shady spot on a part of their property so remote it would be best referred to as wilderness. Pinned his cousin to the passenger door and rewarded his patience.