ITALIAN PROVERB / CONSCIENCE

As I’ve stated previously, translating proverbs can be tricky. Here are 3 Italian proverbs that relate to conscience.
The first is straightforward:
“Alla coscienza nessuno può sottrarsi.” This means: “You can’t escape your conscience.”
The next one is still easily translated: “Una buona coscienza è un buon cuscino.” Literally, this means: “A good conscience is a good cushion,” but it’s meant to imply: “A good conscience is a soft pillow.” That makes sense. If your conscience is clear, you’ll sleep without difficulty.
This third proverb, which I’m told is of Tuscan origin, is the brain-squeezer: “Lui ha la coda di paglia.”
Literally, this means: “He has the straw’s tail.” Say what?
What does having the tail of a piece of straw have to do with conscience?
In Tuscany, to be accused of having “la coda di paglia” means you have a guilty conscience. Maybe the guilty person in question is playing at drawing straws: he draws the short straw but instead of revealing this “losing” straw, he conceals the short end (tail) of the straw; however, the contrite look on his face exposes his guilty conscience. I don’t know if this conclusion is correct, but it’s the only one I could come up with. If you have a different one, let me know.
Ciao!