I don’t know what it is, but when my car is low on gas, I start feeling really anxious, nervous, and even a little depressed. Sure, there is also the slight high of living on the edge, taking a risk, wondering how far I can drive before it stalls. But when I fill my vehicle up, and pull out of the gas station for the next 45 miles or so (as long as I can ignore how much I paid) I feel fresh and renewed. Full of energy, and happy. Reborn. I’m not sure what this means, but being full of gas at least for a little while makes me feel good. I’m wondering if I will feel the same with a hybrid or a car that drives with no gas at all.