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worry unnecessarily or excessively; "don't fuss too much over the grandchildren--they are quite big now"
argue over petty things; "Let's not quibble over pennies"
(informal) small and of little importance; "a fiddling sum of money"; "a footling gesture"; "our worries are lilliputian compared with those of countries that are at war"; "a little (or small) matter"; "a dispute over niggling details"; "limited to petty enterprises"; "piffling efforts"; "giving a police officer a free meal may be against the law, but it seems to be a picayune infraction"