No, my pants didn't fall down in the Walmart checkout line, but this is almost as good! While sitting at a red light a few blocks from the U-haul store I was returning our rented box van to after moving my mother-in-law into her condo, a guy in a pickup pulls alongside me and gestures to roll my window down, them shouts over to me that the roll-up door at the back of the van wasn't closed. I thank him, then, being so close to the U-Haul joint, I just kept going, knowing that the box is empty and nothing can tumble out. About a block from U-Haul, I start to realize that something was kind of 'fishy', because I distinctly recall securing that door before taking off to return the truck, only a few minutes earlier.. Sure enough, my good samaritan hadn't realized that the, quite convincing vinyl color graphic on that rear door was of a partially-closed roll-up door, and had fooled him completely. You can see how good the illusion is, however, and at a glance it could fool you... It was decent my of him to bother with trying to alert me to a potential problem, though.