If they're OK, you're it. If you are given an open-book test, you will forget your book. If you are given a take-home test, you will forget where you live. It may be that your sole purpose in life is simply to serve as a warning to others. You can't fall off the floor.
Blues are simple.
After you have the first line right, repeat it. Then find something that rhymes. Got a good woman with the meanest dog in town. He got teeth like Margaret Thatcher and he weighs 'bout 500 pounds. The blues are not about limitless choice.