Someone at my company must have recently bought or leased a Hummer H2. It's taxicab yellow. Pretty tough to miss. I can't help but wonder, "Why would any person of sane mind want to drive a taxicab yellow Hummer to a desk job?" The mere sight of this H2 makes me ill ... like when I saw Magda's boobs in Something About Mary.

Not good.
I'm going to assume the sight of his or her new H2 in the driveway doesn't elicit images of Magda, so you have to wonder: What motivates this person?
Can't be the fuel economy. The H2 gets 13mpg on the highway and 10mpg in the city. Depending on the driver and driving style, the H2 can get as low as ~8mpg. That thing is gonna kill your transportation budget with regular over $3/gallon.
It's obvious the H2 owner could care less about spending money on gas.
Maybe the person is an off-road junkie on the weekends. If so, perhaps there's a valid reason to own an H2, though I think it's still stupid to drive it into work. (If you have enough money to blow on a Hummer, why not take some of that cash and buy a smaller car for use during the week?) Plus, the H2 at my office is looking spotless. Not a drop of mud on the thing since it started rolling in.
Then again, the person who drives the H2 is likely so enamored with the thing that you can imagine over-zealous car washing is probably fairly common - especially when the car is new.
Regardless of what fires this person's neurons (I don't want to get into psychological needs/desires/esteem angle), it's probably pretty safe to assume the H2 driver doesn't think much about personal carbon footprint or environmental responsibility.
I find that mind-boggling. Global warming news stories are nearly ubiquitous these days. Hell, even George W. Bush is now acknowledging that we need to deal with the environment/energy double-edge sword. Candidates for President are almost universally talking about the need to increase fuel economy in our auto fleet. And then there's the recent purchaser of our banana peel yellow H2 who is currently giving a middle finger to the Earth.
I have a prediction. Those middle fingers won't be proudly displayed much longer. There will come a point in the not-too-distant future when driving an H2 will be embarrasing. H2 owners will have the option of spending an afternoon in the stockade or wearing a beige sweater with a massive yellow "H2" nylon patch sewed onto it, Hester Prynne style.
H2, FU!