I think the "New Thread" button is like the shiny button or fire alarm that your parents told you to stop touching. It just sits there and tempts some people, until they're like "**** it - I had a thought, I'm making a thread."
That happened to me on my grandfather's farm one time. I'm not sure exactly what the machine he was running was called, but it had something to do with hey. He got off of it to check out something that had jammed, and left the control pad with the one large ACTION button on it with me up on the seat, telling me not to touch it.
I'm pretty sure I almost killed him.
Don't leave your kids unattended on farm equipment, people.