I believe this was a Jody Call...

Uncle Bert and Auntie Mabel,
Fell asleep at the breakfast table.
Let that be an awful warning
Not to do it in the morning.
Ovaltine has put them right,
Now they do it day and night.
Uncle Bert is hoping soon
To do it in the afternoon.
Hark the herald angels sing,
"Ovaltine's a damn fine thing."

Graham.