Abortions for Some, Miniature Irish Flags for Others.

[hazard]

Not really. An 'exception that proves the rule' means that a given case or event tests a rule. The US 9th Amendment to the Constitution is 'just because we wrote all these rights down doesn't mean the list is exhaustive, and does not mean that just because any right we did not write down is not on the list it may be used as a reason to deny such an unwritten right to anyone.' It's not an exception clause, it's an inclusion clause.