A few things I don't do ...

I never run a sign that has cross traffic that doesn't stop.

I never run a sign and then get in take the lane in front of a car that had to stop.

I never go against a red light where cross traffic is exiting from a freeway.

I never go against a red light when there are more than two lanes in any direction.

I never go against a red light when I have not been through the intersection before. In other words, if I'm in unfamiliar territory, I wait until it's green.