One possible main plot for the 'sad horse story' could be that a horse lives in a war - torn area. It witnesses the horrors of war, loses its stable mates, and has to endure the chaos and destruction around it. The horse may be injured by stray bullets or explosions, and it has no one to take proper care of it in such a harsh environment, which is extremely sad.
As I said before, not knowing the exact 'sad horse story', but generally, it could be that a horse faces a great loss, like the loss of its beloved rider. The horse might be left heartbroken, not understanding where its rider has gone, and it stops eating or being active as it used to be.
Perhaps the horse is injured in a race. It's a famous racehorse, but after the injury, it's no longer useful to its trainer. So it's sent away to a place where it's not treated well. It used to be the center of attention, but now it's all alone and sad, longing for its days on the track.
The Trojan horse story is about a clever stratagem by the Greeks. After years of fighting, they decided to create a giant wooden horse. The Trojans, being naive, thought it was something harmless. They dragged it into their city. Inside the horse were Greek soldiers. Once inside Troy, they waited until night. Then they attacked the Trojans from within while the rest of the Greek army entered through the gates they opened, ultimately resulting in the destruction of Troy.
Well, the Trojan Horse story is about deception. The Greeks, frustrated by their inability to take Troy by force, came up with this clever plan. They constructed the horse. The Trojans, being naive in this case, took the horse in without suspecting a thing. And the Greek soldiers inside the horse were the key to the Greeks finally conquering Troy.
The Sims 3 Sad Horse Story could potentially be about a horse that is facing hardships in the game world. It could be related to its living conditions, like not having enough food or proper shelter. Or it could be about the horse's emotional state, such as being lonely because it doesn't have any horse friends. It might also be part of a quest or scenario where the player has to help the sad horse out, like finding a way to make it happy again, perhaps by getting it a new stable or training it to participate in horse shows.
One reason could be neglect. If the owner doesn't take proper care, like not feeding it enough or not providing shelter, the horse would be sad.
I'm not sure specifically which 'sad dressage horse story' you mean. It could be about a horse that is mistreated in the context of dressage, perhaps being overworked, not given proper care, or forced to perform difficult maneuvers in an inhumane way.
Since I'm not familiar with this 'Maconchy sad story', it's impossible to say the main plot accurately. However, it might be about Maconchy's struggle in a war - if it's a historical story. They could have lost their friends, family, and even their own identity during the chaos of war. Or it could be a story of a Maconchy who was an artist but was constantly rejected and finally gave up on their passion, which is a very sad plot indeed.
Maybe the chicken lost its home. So it had to wander around sadly, not knowing where to go.
Since we don't have any details about this 'guest 666 sad story', we can only guess. It could be that the guest was in a difficult situation in a new place. Maybe they moved to a new city (the number 666 could just be a random identifier). They expected to start a new and happy life but instead faced problems like discrimination, not being able to find a proper place to live, and not making any friends easily. This could lead to a sad story full of loneliness, disappointment and frustration.
The main plot might be about a caterpillar facing difficulties or challenges that make it sad. Maybe it has trouble finding food, a safe place to stay, or perhaps it's lonely.