Hiding a layoff from the family, bad idea? (update)

My spouse does not know yet that I was let go as a customer-service rep. I am in Atlanta, in case local advice matters. I want a plan before I speak. How did you handle it?

Kids often pick up more than you think. A short, calm explanation helped mine feel secure.

Shame is common after a layoff even when it is not your fault. Saying it out loud to one person first helped me.