SimLane has offered two methods to stop the obsessed fan from hanging around at your house if your Sim is a celebrity. These are on two different sub-sites of SimLane too. The first option comes from Coaster's. It's a free download, and works like the Stray-Away Pet Prevention System (from the official site): you buy a sign, place it somewhere on your lawn (or anywhere else), and the fan will leave your lot as soon as he sees the sign. The other option comes from Maxim's. That download works like the burglar alarm: you place their alarm on your house (which also goes off in case a thief comes near - it has a 40% wider range than the original burglar alarm). Whenever the obsessed fan comes near, the police will come and chase him off the lot. To download the "SimSafety VII Burglar/Fan Alarm", you'll need to pay $1.30 through paypal, but it's worth it. Good luck with getting that obsessed fan out of the way!