"No more talking"

Garrett has turned into a tape recorder these days.  He asked the same question repeatedly over and over again.  It gets on our nerves, and needless to say, Ryan is also a bit annoyed.  The other morning I was taking Ryan to preschool and Garrett asked the same question, "Are you going to school Ryan?" repeatedly.  Ryan kept answering although each time he would respond louder.  Finally, Ryan said, "Yes, I'm going to school and NO MORE TALKING Garrett!"