You might be an ecomodder if your first questions to your two friends that just bought brand new 2010 Mustang GT and loaded 2010 Camereo Z's is:"How Many Miles Per Gallon Do You-All Get?"
These types of questions may lead to black eyes so it may be best to ask the question on a cell phone instead of in person.
I actually did that one time. A guy I barely new had just bought a real fast sports car, and my only question for him was "What kind of fuel economy do you get from it? I thought for a second he was going to HIT ME! HE cussed a few words and threw his arms up in the air and took somebody out to show off how fast it would go. For some reason he never offered to take me for a drive in his car. What a pitty...