A small twin-engine Piper plane has crashed into house in the city of Shoreham, in the West Sussex, just before Mrs Helen Monahan, the owner of the home, went out to collect her children from school. By a quirk of fate, therefore, a tragedy didn't occur, although what happened is really bizarre; indeed the pilot, a 54 years-old surgeon, has calculated wrongly the conversion of liters in gallons when...