Grandfather Frog in "Billy Mink Finds Little Joe Otter"

"Thanks," said Billy Mink, and without waiting to say more he was off like a little brown flash.
Jerry watched him out of sight. "Hump!" exclaimed Jerry. "Billy Mink is in a terrible hurry this morning. Now I wonder what he is so anxious to find Little Joe Otter for. When they get their heads together, it is usually for some mischief."