This is what you should NOT do in a Wal-Mart parking lot. While it's true that many RVers spend the night in a Wal-Mart parking lot, they do so in self-contained RVs -- without putting out slides, or setting out lawn chairs or barbecue grills. The idea is to blend in. In this 30-second video, a couple of guys set up camp with . . . well, see for yourself. Tip: Never do this. Never!