I actually knew a guy who used to steal rare LPs from collections in Kansas City. I never got anything from him that I know of, but it always creeped me out.
My parents were robbed of jewelry, cash, CDs and laptops while they were trying to sell their house. It so happens that thieves use the occasion to case joints, acting like potential buyers. In fact, while a house in my hometown was being shown, thieves drove up in a tractor-trailer and fucking cleaned the house out, top to bottom! The neighbors just assumed that they were the movers!