1.on thin ice in an unsafe or risky position without much support.2.rain one's brains to try very hard to think of something.3.rain on someone's parade -to spoil someone's happy feelings.4.see which way the wind blows -to determine what actions or word will be acceptable.5.take a rain check -to accept a different time for an appointment from the original one.6.troubled waters -emotionally rough times or unsettled situation.