Quote Originally Posted by Nochowderforyou
Then have sex with her corpse.

Go back to her house and get it. Say, "I know you hate me, but I just want my guitar pedal and you'll never see me again". Go IN there and get it. It's yours, right?

If that doesn't work, ask to bring a police escort with you. knock on the door with the bacon, and she'll have no choice but to give back to you.
You can also wait by her house until she comes out and then "BAM" hold an empty fishbowl right next to her. Follow her, always keeping the fishbowl no more then 3 inches away from her face.
This should get her really, intensely confused, hopefully hospitalized, and after that it's free pickin's at her house.