Julius Caesar 2.2 Performance: Caesar, Lines 71-82

The speaker decides not to attend the Senate, explaining privately that his wife, Calpurnia, has urged him to stay home due to a troubling dream. In her dream, she saw his statue spouting blood, which Romans bathed in, interpreting it as a bad omen. She pleads with him to heed these warnings and stay home to avoid imminent danger.

What did the Romans do in Calpurnia's dream?

What was the reason given for the speaker to stay at home?