"ignorance is bliss"
it's better not to know
"the 11th hour"
the last minute
"play the devil's advocate"
arguing a point, just for the sake of the argument
"when pigs fly"
something that will probably never happen
"break new ground"
do something you've never done or that hasn't been done before
"forty winks"
"bury the hatchet"
put your differences behind you
"turn a deaf ear"
ignore
"every cloud has a silver lining"
bad situations usually have a positive part or ending
"beside yourself with worry"
really worried
"shoot from the hip"
to spontaneously think of a response
"wear your heart on your sleeve"
"once in a blue moon"
doesn't happen very often (blue moons are the second full moon in one calendar month)
She is the "black sheep of the family."
She, and/or her family feel that she is a disgrace.
"a cake walk"
easy
"once bitten, twice shy"
After a bad experience, you are scared to try again.
"look before you leap"
think about the risks before jumping into something
"sticky fingers"
likes to steal; a thief
the "snowball effect"
how things build momentum and build upon each other
"play it by ear"
decide as you go
"like a cat on a hot, tin roof"
in an uneasy situation, not sure how to proceed
"a slap on the wrist"
a very minimal punishment for something bad
"up a creek without a paddle"
stuck in a problem situation without a solution
"don't cry over spilled milk"
don't get upset about something that can't be changed/has already happened/does need the worry
"a bird in the hand is better than two in the bush"
an opportunity you have right now is better than opportunities you may or may not have in the future