Don't buy your gas from a 7-Eleven

I filled my tank at a 7-Eleven yesterday for $3.09 cents a gallon. I traveled about 50 yards down the road and my car stopped. A tow truck took it to the dealer. After draining some of the tank they found not just premium gasoline but a 50/50 mixture of gasoline and water. Nice. My $40 tank of gas is going to cost me about $2,000 in repairs. I guess the moral of the story is don't buy gasoline from a convenience store.