Not long lasting relationships, but interesting experiences when I decided to take up golf in my early 50s. I'd go to a nearby municipal course and get paired up with people. On two occasions they turned out to be former "pros," mini-tour non-success stories, who'd played college golf. The first was now a long haul truck driver whose tractor/cab I'd seen in the parking lot. He said he was from Ohio and tried to get in a round when he could. Very nice guy and you could see the skill level, but rusty.
The other time it was a local (Charlotte) guy with two other friends. He'd played high school golf in Charlotte and then at a small college in Texas, whose name I cannot recall, and then on a mini-tour without success -- he was now driving a delivery truck for UPS. He was still a really good player, maybe shot just one or two over par that day, but he was trying to introduce one of the friends, a raw beginner, to the game, and could not have done a worse job. He'd give the guy (a fellow UPS worker), who was trying hard, a pointer, and then berate him meanly when he failed, which was just about every shot. This was not a pleasant experience for me.