Random visits (solved)
Why do random sims just come to visit? They've never met my sims. They don't come inside. It turns out they are vampires who just stand at the door.
Forum Discussion
This was a big feature back when the game was first released long before lot traits. It stopped sometime after GTW or GT, seems it has returned but I do believe this is by design. There were hundreds of complaints about Sims just barging in, but to the best of my knowledge this is how the base game played for a few years or until GT then they didn't visit as much.
