Rejected

Recently I was fueling the Geomobile in Warren. Since I'm a geek, I notice things like the little inspection stickers on a pump. They always say accepted or some other positive word. Not this one. It had a great big rejected sticker on the pump. I was curious and looked at a few others, but the pump I chose was the only one wearing a rejected tag. I'm confused. Shouldn't a fuel pump which has been rejected by the wieghts and measures division be taken out of service until it gets a smiling accepted sticker?