When the fox preaches, then beware your geese. 
Proverbs on a similar topic
- Keep your eyes open.
- Look before you leap.
- Let sleeping dogs lie.
- Walls have ears.
- Look after number one.
- Caution is the parent of safety.
- The burnt child dreads the fire.
- Fire and water are good servants, but bad masters.
- The master's eye makes the horse fat.
- Measure twice, cut but once.
- Whom a serpent has bitten, a lizard alarms.
- Scald not your lips in another man's pottage.
- One eye of the master sees more than ten of the servants.
- Take heed of an ox before, of a horse behind, of a monk on all sides.
- Put not the hand between the bark and the tree.
- The fox preys farthest from his home.
- Birds once snared fear all bushes.
Related proverbs
Similar proverbs in another language
French
-
Quand le renard se met à prêcher, gare aux poules.
When the fox starts preaching, watch out for the chickens.
German
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Wenn der Fuchs predigt, so nimm die Hühner in acht.
When the fox preaches, watch out for the chickens.
Czech
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Když liška dříme, hleď se, kohoute.
When the fox is snoozing, look out, rooster.