Please use this thread going forward: [S] Father winter won't leave | EA Forums - 12238733
I don't know if this issue was resolved, but just in case some are still having this problem and want an answer, I have discovered a solution.
I only have an issue with Father Winter not leaving when I play my University lot, and then an idea struck me.
I don't have any fireplaces on my University lot, so ...
When Father Winter visited my sim at the University, and when he didn't leave, I put in a fireplace.
Sure enough ... Father Winter went right to the fireplace and left.
Hope this has helped someone.
Yeah, this happened to me, too. I DO have a fireplace, and he did the rotate upwards leaving animation and the sound played, but then computers fired off video games when no one was there, and the game pad played games by itself, and all my Sims were "chatting with [father winter]" when he wasn't there, and the game refused to go to speed 4 when everyone was asleep, so I went into manage worlds and it turned out he'd been living in their home, invisible, for 36 hours. (He became visible on lot reload.) Creeeeeeeeeepy. There was no option to send him home or ask him to leave.
I used the middle-school solution and invited him to the park, then turned around and left him there during a blizzard and locked all the doors. No offense, Santa, but you can't live with us. GO HOME.
