One good idea from The Simpsons is to "borrow" some cordon tape and cordon off her house while she is out. I thought "CRIME SCENE" would be good, but "TransCo - GAS LEAK - KEEP OUT" would be even better because there wouldn't be any "wasting police time" issues and TransCo are so inefficient it would take several hours just to get through on the phone! (obviously she would have to use somebody else's phone too!)

Gareth