Catching it early
The quiet ask and the follow-through take most of the shouting out of the week. This chapter is for the rest, the evenings when you're depleted and the ladder starts anyway. It's my own list.
Know the times. Chapter 15. If the list says ten past six, then at five past six you say to yourself, "This is the hour." Knowing it's coming is half of not being ambushed by it.
Change the conditions first. A snack at half past four for everyone, including you. Screens off by a timer, not a voice. Tea earlier. Bags packed the night before. Ten minutes' extra margin in the morning. The hob turned off while you deal with a child. These remove the collisions, and it's far easier to remove a collision than to stay calm inside one.
Watch for the third ask. The one with the edge. When you hear it in your own voice, you're one rung from the shout. That's the signal to stop calling and go to the child, or to leave the room.
Notice the body. The NHS list of what anger feels like. Heart faster, jaw and shoulders tight, hot face, chest tight. These come before the shout. Learn what yours are. For most people, in my observation, it's the jaw.
Take thirty seconds. "I'm going to the kitchen for a minute." Say it and go. The NHS suggests counting to ten and slow breathing before reacting, and thirty seconds out of the room does the same job with a door in between. The pasta can wait. So can the shoes. Nothing at ten past six is as urgent as it feels.
Drop your voice. If you can't leave, go the other way from the shout. Speak more quietly than usual, almost a whisper. It's strange enough that children attend to it, and it's nearly impossible to do while furious, so it acts as a brake on you as much as a signal to them.
Say what you're doing. "I'm getting cross, and I don't want to shout, so I'm going to stop talking for a minute." This is not weakness. It's a demonstration, in front of the child, of a person noticing anger and handling it, which is a lesson worth more than anything about tables.
Leave the speech out. If you do lose it, lose it in one sentence and stop. "I've asked you to lay the table and I'm angry that it's not done." Then silence. The shout that does the most damage is the speech that follows it, the one about how nobody in this house does anything. That's where the insults live, and insults are what Wang and Kenny's harsh discipline was made of.
These are small tools and none of them is reliable on its own. Together, with the conditions changed and the ladder gone, they cover most evenings. The ones they don't cover are what chapter 20 is for.