American's have their way of irritating everybody. I personally think that they are "falsafchiyeen" zyada 3an il lzoom. Allow me to clarify:

Why do you use feet when everyone else in the World uses meters?

Why do you use miles per hour when everyone else uses Kilometers per hour?

Why do you use pounds when everyone else uses Kilograms?

Why do you use the fahrenheit scale when everyone else uses the celsius scale?

Those are a couple of questions brought up by the fact that I just failed my Finals because of conversions between scales.