Perhaps the most significant structural flaw in the current system, however, is that the fox is guarding the henhouse.

I was near by, guarding his privacy, but you both escaped before I could stop you.

Indeed, their machinery for guarding health while education of a high class goes on is admirable.

Let us join together silently in guarding Maude's good name, and in burying the past.

Beneath the conventions of courtesy, each mans fists are guarding his pockets and his eyes are on his neighbor.

Thus the colonists endured continual hardships, guarding the workmen by day and keeping watch by night.