How would you have responded to this??

[Lise]

RM--righteous indignation, my favorite. I'm not great at toning it down, myself.

Mr. Silver--very nice!

and finally--a HUMMER? I really, really don't get those. Aren't they Army vehicles? I wonder how many bikes you could make out of the metal in a Hummer....Lise wanders off to ponder that lovely scenario...

[missymaya]

You go RM for standing up to stuffy Hummer. For me, I would have cut down on the sarcastic tone a little and planted some personal situations in her way, i.e, "what if you were on the sidewalk with your kid and you saw a cyclist coming your way, would you walk on the street to get out of the way or just gotten hit?" and other scenarios.
But, the argument that you stated still got the point across very clearly.

[7rider]

I wonder how many bikes you could make out of the metal in a Hummer

Wow.
Now THERE'S something I hadn't pondered before........
Way cool.
What a lovely image.