When it flies, most everybody gets a whiff. Witness before action, until it has become apparent to be going South. Good luck. My training will not allow me to herded, kneeled down, or family. Hope you gave all the goodbyes, and a hug.
We have a code word, that upon said, Wifey grabs kids, and immediately goes the opposite direction. Simply: It's on, book away.
Code word is a good idea.