Reminds me of a former student, young guy from Alaska, who upon completion of his PPL had a look through the school's 141 syllabus. After seeing the course hours of 115, he was convinced that was the total time for a CPL. (what he failed to comprehend was 35 for ppl + 115 for cpl = the required 150 hrs.) No amount of explanation, including the requirements in the FARs would help. Not even a call to our friendly FAA inspector would change his mind. So he decides we are trying to rip him off, and heads down to Boatpix of all places.
So I run into him about a year later during a fuel stop, and I don't even say hello. The first words out of my mouth, " I was right, wasn't I?" His eyes went straight to the ground, shoulders slouched and he sheepishly replied, " Yea, you were right." And we proceeded to have a normal conversation after that.