That's my wife...when the light turns green, she looks each way a couple times to make sure nobody is blowing through the red and then crawls away in her peppy V6 sedan. I will give her credit for being consistent, even when we are in a huge hurry to get somewhere (like to catch a flight) she sticks with her relaxed ways. I will admit that she gets vastly better gas mileage than her lead-footed husband, even though we have vehicles of comparable weight and pep.
I am generally watching the cross lights and scan both ways on their yellow for possible morons who are going to blow through the red, and then am gone the moment I have the green. If somebody is blowing through their red, I pull out enough to catch their attention and then brake and blow the horn...I want them to know somebody noticed what they
I just sit still and blow the horn. Good way to get rear ended by the guy behind you, they are hitting the gas not expecting you to hit the brakes.