That is frightening, nice catch though. I once rented a diesel Mercedez Van on a work trip. Some of my co-workers had mentioned a slight fuel smell for a few days, which we ignored. One day the smell went from faint to excessive while we were idling at the work site, watched 1/8 of a tank disappear from the gauge before shutting it down. On the bright side, the thing had wild vibrations. With my arm sitting on the driver arm rest my fitibit registered over 20,000 steps a day. I was in great shape, haha.