Have you ever seen kids wearing those shoes with little lights that flash when they walk? Well now an American company has decided that jeans might also benefit from the addition of flashing lights. American Chi has come up with a range of jeans containing light-emitting diodes woven into the back pockets that flash animated images of winking faces, wagging fingers and chattering teeth. Now I am a bit of a purist when it comes to denim and I’m afraid that the thought of adding batteries and lights to a pair of jeans is just sacrilige to me.