Silent Hummer

The jerk that sits behind you in math class and quetily humms to himself.... But not loud enough to where the teacher can hear, just you...

Joey - "Mr. Turnner, do you hear it now? he's humming Hannah montanna songs again!"

Mr. Turnner - "I don't hear any thing"

Silent hummer - "Nobody's perfect, I gotta work it"

Joey - *bang's head against desk*