Dinner At The Chinese Buffet

I had just two kids all weekend. Peaceful. Sunday night the 3 of us went to the Chinese buffet. The older son comes back to his seat with a mouth watering steak from the hibachi grill. It was perfect, looking and tasting. The 10 year old son immediately wanted the same thing and went over to the grill, put a steak on the plate and said, "I would like this with teriyaki sauce please." The chef said, "How would you like it done?"
My son said, "What?"
"How would you like it done?"
"With teriyaki sauce."
"Do you want it cooked medium?"
"Yes please. "
"Medium what?"
"What?"
"What kind of medium?"
"What?"
"How would you like it cooked?"
"With teriyaki sauce.
"And medium?'
"Yes."
"Medium how?"
"Um, medium low."
"There is no such thing."
My son comes back to the table with a char broiled most well done steak I have ever seen that looked nothing at all like the meat the other son had, and says, "Is this what I ordered?"