My dad used to write his thesis on a notepad (paper not computer) while driving. Quite a few times we went off the shoulder and into the dirt at highway speeds before he corrected.I ran off the road once long before cell phones existed. The police officer asked if I had fallen asleep at the wheel. I had not. My sons were arguing and instead of getting off the road and getting them settled down the easy way, I allowed them to distract me enough that I got off the road the hard way.