One morning my student and I were taxiing to the runup area. We overheard this conversation between a student pilot and ground control.

Student: Euhhhh Riverside Ground Cessna 1234
RVS Ground: Cessna 1234 go ahead
Student: yeah euhhh I'm on my first solo and euhh when I lower my flaps they go euhh down and come back up an inch, and then go "ert err ert err" (making squeaking noise over radio).
Ground: Cessna 1234 what do you want to do?
Student: euh well euh that's what I'm not sure of, my flaps go "ert err ert err"
Different instructor comes on the radio and tells him to taxi to parking.