The only issue I have with this is there's a British gallon (that is DIFFERENT from the American gallon) that is used to measure milk. :D. That was the only place I saw gallon being used.
Still british units :D. In 1826 Britain decided to redefine gallon to mean "10 pounds of water". The earlier standard was 231 cublic inches (potentially meant to be 8 pounds of water). The US never adopted the new gallon.
Actually, as much as I dislike imperial units, when it comes to body temperature I do think in Fahrenheit. Mostly because that's how my mum would tell if we were too sick to go to school. 99 - just a little ill, but you can have the day off. 100 - pretty ill, probably at least 3 days off. 101+ - super mega ill, off all week.
We talk about fuel economy in miles per gallon, but fuel prices are shown per litre. And this is from 1980 - everything gets a bit weirder measurement-wise the further back you go.
Nah, driving distance is generally miles and speed is mph too. I think sometimes distances under a mile can be in metres (like signs that say, for example, no hard shoulder for 200m).
If you read the Highway Code, you'll learn that it's all over the place. Long distances on signs are in miles. But distance markers are placed in metres. But emergency phones are placed every mile. And distance markers, which are placed in metres and indicate distances in meters can also have a distance to the next emergency phone in fucking yards. One sign, two numbers, no letters, two systems. FUCKING HELL!!!