Also helps to have a couple of young kids in the car! I was rather shocked to see a Police car appear in my rear view mirror when I was doing (an indicated) 90 on the motorway. I slowed to 80 - thought any less would make me look really guilty! He sat behind me for a minute then overtook and gave me a stern finger waving! No doubt if I'd been younger and on my own I'd have been pulled.
Matt.