Student: We are getting 0.01 for our battery voltage.
Mentor: "Did you set the jumper to get battery voltage?"
Student: "I am pretty sure this version of the 9201 doesn't need a jumper."

Next Day -

Mentor: "Did you fix the voltage problem?"
Student: "I can't figure it out can you check the documentation and see if I missed something?"

Mentor - after reading the documentation and finding the the un-jumpered jumper pins: "You said there was no jumper and the jumper pins are right there as plain as the nose on your face."

Student: "Well I said I was only 99% sure there was no jumper."

Mentor: "******deleted to preserve gracious professionalism**********"