Hairy Maclary from Donaldson's Dairy

The iconic first Hairy Maclary book, which introduces Hercules Morse, Bitzer Maloney, Muffin McLay, Bottomley Potts, Schnitzel von Krumm and of course the famous Hairy Maclary from Donaldson's Dairy.

Lynley Dodd's iconic first Hairy Maclary book, which introduces the famous Hairy Maclary from Donaldson's Dairy and his canine gang.

Out of the gate
and off for a walk
went Hairy Maclary
from Donaldson's Dairy

Hairy Maclary's friends join him for a walk until, with a sudden yowl, a wail and a howl, they all run off.

What could have caused such a scatter of paws?