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Both my husband and my sister are know-it-alls who try to do everything without knowledge or ability to do so. My husband wants to remove my dogs sutures to save money. My sister's motivations are often the same--to save money. What is this person called?

marked as duplicate by MetaEd, Kristina Lopez, Mari-Lou A, FumbleFingers, ab2 Jul 1 '16 at 21:38

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    The question lacks evidence of research. Word or phrase requests are out of scope unless they are expert-level, particularly interesting, unique, and thought-provoking, and show effort and research. For help writing a good question, see How to Ask. – MetaEd Jul 1 '16 at 18:27
  • Maybe you're looking for a do-it-yourselfer. – MetaEd Jul 1 '16 at 18:34
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    Since the motivation is money, I would call them frugal. Also, penny-wise-dollar-dumb comes to mind because it sounds like they are frugal to a fault. – MonkeyZeus Jul 1 '16 at 19:12
  • Two daughters related by marriage are daughters-in-law. Why wouldn't your two wanna-be surgeons be knows-it-all? : ) – Stan Jul 1 '16 at 19:21
  • They could also be called thrifty or frugal, which would emphasize that neither likes to "waste" money. But those terms are not synonyms for know-it-all – Mari-Lou A Jul 1 '16 at 19:47
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I have some singularly unflattering suggestions for you.

For the medically pretentious overtones: Quack

a person who pretends, professionally or publicly, to skill, knowledge, or qualifications he or she does not possess; a charlatan.

More of the fraudster type: Charlatan

A person falsely claiming to have a special knowledge or skill:
a self-confessed con artist and charlatan

Perhaps the most neutral of the bunch: Pretender

a person who makes unjustified or false claims, statements, etc., as about personal status, abilities, intentions, or the like:
a pretender to literary genius.

References:
http://www.dictionary.com/browse/quack
http://www.oxforddictionaries.com/definition/english/charlatan
http://www.dictionary.com/browse/pretender

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