Just a quick note if they are on the forum...
My wife was using my YRV Turbo for the day, and left the lights on when shopping at Tesco. Result - flat battery

But there was another couple in a Daihatsu who actually came over to help her (after noticing the car!) and had jumper cables and saved the day! Apparently even had a conversation about how great Daihatsus are!

Don't know if they use the forum, but if they do, thank you very much (from my wife and I) for the help!