Vas Deferens

The English language is often complained about because of it's difficulty.

I understand why it's a problem - they're there their, etc..

However, usually this is a problem for immigrants or foreigners who try to learn English, however, it is also a huge problem within the US of A. For instance, given this situation: patient suffering from some sort of reproductive problem and a doctor from Kansas and a doctor from Alabama are collaborating at the Mayo Clinic. Now let's say the Alabama doctor is quite long-winded. Perhaps, the Kansas doctor would say something like, "well whats the diagnosis?" and his associate would begin by saying, "well its a vast difference between the testicles and the urethra..." upon which time the Kansas doctor would go into surgery and mistreat the patient. Why, you ask? Well, because when the southern doctor said, "it's a vast difference between the testicles and urethra" in a southern drawl, the Kansas doctor heard, "it's the vas deferens between the testicles and the urethra."

Case in point, the English language is a very powerful and difficult snake to control. It slithers around in ER's or clinics and interferes with well intentioned Kansas-ian doctors who are just trying to do their job.