How we don't use the Metric System here in America, which actually makes sense. Who's idea was it to make 5,280 feet in one mile? Why 5,280? What kind of random number is that?
I can better measure volumes of liquids in liters and milliliters. I can't believe we use gallons and pints and cups to measure. I don't even remember how many pints are in a cup and what not. There four of something in a gallon, but I don't even remember the name of that.
But seriously, in one liter, there is 1,000 milliliters. The same thing with kilometers and meters. Our society is so lazy that we will never switch over. I can't believe we are one of only three countries to still use the imperal system.