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general::
Phrase(s): A bad excuse is better than none.
Prov. If you offer some explanation for an unwanted action, there is a slight chance that it will be accepted and you will therefore not be in trouble, but if you have no explanation at all, you do not even have that slight chance. • Fred: I can’t believe we played cards till midnight! What will I tell my wife when she asks why I’m so late getting home? Bill: Tell her something came up at the office. Fred: But that’s a lousy excuse. She’ll never believe it. Bill: A bad excuse is better than none.
McGrawhill's American Idioms And Phrasal Verbs