YOW!!! "Including ethanol in petrol is not really contaminating it, but there has to be a clear warning to people who buy petrol as to exactly what is in it." You bet your asterisk you need to warn people! A petrol engine that's not built for ethanol will do some really bad things with more than just a tiny bit of ethanol in the fuel-and some components which resist petrol are damaged by ethanol!
Dibs on the pitchfork and torch concession! Someone is going to be in BAD trouble!