In a magazine article I read about an English spy in WW2. At one point he was in an apartment when the 'little voice in his head' told him "Leave Now!". He got up and walked out the door and on his way down the staircase he flattened against the wall as he was passed by two Gestapo and several Wehrmacht soldiers. They were on their way to arrest him but only knew what room he was in not what he looked like. He had spent several years in pre-war France and spoke perfect French and dressed like a French workingman.
The article went on to state that this was one of his several 'close call' escapes and that he went back to England several times to teach newly recruited agents and spies. I disctincly remember that when relating this story he told the class that if you ever got a feeling that you should leave or your 'inner voice' told you to leave you should do it right away, pointing out that if he stopped to take his hat or his satchel he would have been in the room when the Germans showed up.
I have looked on the 'net for this but am unable to find it. I specifically also look for articles regarding 'warnings' from your 'inner voice' (inner speech, inner monolog, verbal thinking) but have only been able to find general articles about mundane tasks or articles about how to deal with hostile inner speech or auditory hallucinations