I came across a site with loads of National sayings http://www.quotesandsayings.com/proverbial.htm
I thought these were rather good.
After dark all cats are leopards.
Native American Proverb
The dog's kennel is not the place to keep a sausage.
Danish Proverb
Don't think there are no crocodiles because the water is calm.
Malayan Proverb
He who knows little quickly tells it.
Italian Proverb
A fool shows his annoyance at once, but a prudent man overlooks an insult.
Miscellaneous Proverb
Any favourites from you good folks out there.