There may be a better way to describe this student than verbally impulsive ... we've all seen the student who can't stay seated. Well, this student doesn't stay quiet - interrupts, interjects, unnecessary comments. He is not in my classroom, but I was asked by his teacher if I had ideas how to help. All of the ideas that came to me go back to my behavior analytic roots that would be impossible to do in a classroom setting without derailing instruction for other students. E.g. using a fixed ratio of reinforcement for seconds/minutes of not speaking out. His reinforcer seems to be attention. He is a HS senior. His voice is a very booming-type of voice. What tactics do you have to share?