Most of the things they do that I dislike, I've had modded out
As for just sheer hilarity and confusion; starting to cook meals then walking away, trying to have their first kiss with someone who has clearly expressed disinterest in them, and dancing in front of the fire and then being surprised when their whole family is dead.
"I told you to call the firefighters for a reason, John!"
When a game is predictable, it's boring.
That goes for any medium that isn't life.
That's why The Sims 2 is my favourite sims game.
It has elements of unpredictability and everything feels more involved.
The Sims 4 is another story altogether...