"Don't let the cat out of the bag"
we actually scream that when our cat plays with a paper grocery bag :-)
You can take a horse to water but you can't make him drink.
You can't get blood out of a turnip.
A little bird told me.
What goes around, comes around.
Cat got your tongue?
Like a fish out of water
Mad as a box of frogs!
The early bird catches the worm.
A bird in the hand is worth two in the bush.
Feed a cold; starve a fever
A rolling stone gathers no moss.
A friend in need is a friend indeed.
Actions speak louder than words.
A blessing in disguise.
One cow short in the top paddock.