When I used to play chess on the bus, I found it slightly disconcerting to receive advice from the driver - especially as she had to turn round, and take her eyes of the road to study the board.
I suppose it was fair to call it a draw after a collision - with (chess) pieces scattered everywhere - even if one player was significantly in front at the time?

Years ago a friend and I played chess at work on our lunch hour and breaks, and any time we could sneak it in. But many times we could not finish a game in a day's work. Once when we had to pause a game it nearly caused a traffic accidnet. Later that day I was driving my wife somewhere on a road I knew well and I began thinking about that game. It was down to the endgame with just Kings and Pawns and he had the advantage. However, at that time I had a better understanding than he did of the endgame, but he could wiggle out of some of the most difficult jams. One careless move and it was over for me. (I don't remember the outcome of the game.)
I could visualize the chess board as though I was playing blindfold chess, and I was driving on automatic pilot, so to speak, then suddenly I realized I was about to turn left in front of an oncoming car. That scared the chess out of me. I have never let myself drive and play blindfold chess since.
Have any of you had similar experiences while concentrating on chess?