So today whilst driving my kids back from swimming I was approaching a light controlled roundabout. I use it regularly. Kids were arguing in the back, I took my eye off the ball and just followed the car in front. I was inches away from crashing into car approaching from the right and had to emergency break. The other car (quite rightly) shouted at me and when I looked at the lights I saw that they were dead. Obviously not working. I keep thinking about it and start shaking. I was so close to what could have been a nasty accident. I don't really know what I'm asking but should I really be reacting like this? Am I being ridiculous?