You must have not been following the story. It happened on Tuesday - Christmas Day in fact.
She was the one who said it was Sunday.
... which is begging the question anyway.
You must also subscribe to the theory that the boys must have been up to no good since they visited a zoo on a Tuesday.
My confusion. I guess it was the fact that it was not an ordinary day that caused it. But that’s also one thing that sticks out.