 because there's only one key to this, and if it gets opened, it shuts the pump down, and the only person who has the key is one key in that gas station, and they have to even call to get the code number to reinstate it. Wow. There's a lot of precautions, and the first guy, the guy clearly had a lot of experience in this, is the older the gas station, the more susceptible they are to skimmers. Mm-hmm.