Did you or your children ever catch Santa in the act of toy delivery?

We all love Santa and could not wait for that magic day. At least as a child we did. How about you or your children? Did either ever catch Santa in the “red”? I mean did you or your children ever wake up early and catch a late Santa Claus laying out your gifts under the Christmas tree? What happened? Did you play dumb? Did your children play dumb, so as to not spoil the surprise? Question: How did you or your children react, when you caught Santa Claus in the “act”?