Often with crime, "victims" do not want to be seen in that light of someone who has been taken advantage of in some way so some of these break-ins here in TV may not even get reported especially if they do not get anything of value and/or come in through an open door. Unreported crime statistics link--
http://www.cbsnews.com/stories/2002/...in521212.shtml
These just might be co-incidences that these thieves are targeting only houses with jewelry.
As for Mardi Gras today, you can always leave a bunch of lights and the TV on.