I'm on my way home from work today and I come up on this truck in the lane to the left of me. All of a sudden I smell a strong odor of fuel. I'm like damn, someone is leaking fuel and I'm wondering if I'm riding on it. Next thing I know the truck to the left of me jams his brakes and this gush of fuel come spouting out of his side tank. Most of it sloshed to the ground to the side of me but I was covered in a fine mist as I swerved to avaid the splash. I look over and see the gas cap was danling and fuel was just pouring all over the place. I honked and pointed enough to get the guy to stop and jump out and put the cap back on. Wonder what would have happned if the liquid fuel hit my headers??