Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.

Mule

A gilt bridle for an old mule.French.

He who wants a mule without fault must walk on foot.Spanish.

He who would have a mule without fault must keep none.

Like the pope’s mule that kept its kick for seven years.

Mule don’t kick accordin’ to no rule.African American.

Mules make a great fuss about their ancestors having been asses.German.

The mule long keeps a kick in reserve for its master.French.

Woe to the mule that sees not his master.