Driving? Texting while walking is bad too.
It is not a surprise that when you walk and text, you see a massive drop in viewing your surroundings, but did you know that when are walking and texting or talking on the phone at the same time, your speed of walking declines by a whopping 16%?
Good thing I don't text during my running races; never would have got All American Masters status in the 5k with a 16% slower pace! ;)