Intellectual Stimulation: Not Self Perpetuating

(I work in a market research call center. I carry out all kinds of surveys on behalf of various organizations. On this particular day, we are calling final-year undergraduate university students to ask them for some feedback on their university courses. Bear in mind this person has spent the past three years studying at university.)

Me: “On a scale of 1-10, 10 being very and 1 not at all, how intellectually stimulating would you say your course was?”

Student: “What does intellectually stimulating mean?”