The corn is as high as an elephant's scary eye

Why do people have watch dogs? Why not some other animal. Junk yard elephants could wander the scrap yards ensuring that no-one steals bits of trash. Or a watch goose could patrol your home. There is absolutely nothing as likely to intimidate as a honking goose with bone crushing wings bearing down on you.

Personally, I am afraid of mice. I would never break into a house with a watch mouse.