Most owners use the word "no" dozens of times a day. The dog jumps. "No." The dog grabs a sock. "No." The dog barks at the window. "No." Here's what most owners miss. "No" isn't a command. It's a negative marker that pins the exact moment your dog made a poor choice, the same way "yes" pins the moment they made a good one. But a marker only works if you can immediately redirect the dog to something they've already been taught to do.