There are so many nooks and cranny's in our coach to hide a small lock box. It would take some idiot way too much time to find it. Say for instance, under a jack-knife sofa. You think some clown knows that sofa opens? I have a heck of a time with mine, and I know how to do it!
Just too may places a crook would never know to look unless they were knowledgeable about motorhomes.