What's the difference between fuss and pettifoggery?

Fuss

Definition:

(n.) A tumult; a bustle; unnecessary or annoying ado about trifles.
(n.) One who is unduly anxious about trifles.
(v. i.) To be overbusy or unduly anxious about trifles; to make a bustle or ado.

Example Sentences:

(1) But insiders say the industry has been watering down the proposals, and no amount of fussing over the detail is going to get round the central point.
(2) But minutes after the final whistle, 76% of respondents to a Corriere della Sport online poll were blaming Lippi and in the post-match press conference the man himself was quick to take the blame, appearing to be anxiously awaiting the moment he can disappear quietly from the scene to be replaced by the Fiorentina manager, Cesare Prandelli, a switch decided with little fuss and no media debate just before the World Cup.
(3) The decade of the Delors presidency from 1985 saw further steps towards integration taken with relatively little fuss.
(4) Mel The squirrel in series two, with the balls [incidental footage of a squirrel caused a fuss on social media in 2011].
(5) But the Depp dog furore is a perfect example of the different approach Joyce will take to leading the Nationals – the rural-based minor party in the governing Coalition that has in recent years had a series of gentlemanly leaders who, wherever possible, have settled differences with their Coalition parties quietly, created public fusses only rarely, and international incidents never.
(6) It is now on sale in the store after publisher Europa Editions kicked up a fuss.
(7) If a contractor was involved in an incident which caused a fuss, they were whisked out of the country by their company.
(8) I don't see what all the fuss is about Germany v England.
(9) Such was its challenge that, when it was found in the library of a school run by the Inner London Education Authority in 1986, the fuss exploded and the book was subsequently cited as one of the spurs to the controversial Section 28 of the Local Government Act of 1988.
(10) He has long been called a "rock star president" and there was lots of fuss in Thailand preceding US president Barack Obama's first visit to Bangkok on Sunday.
(11) Outside, there’s no sign of life except one bearded oaf on a chopper and a kid at the back door, holding a picture of Hot Fuss-era Brandon Flowers , praying for a brief encounter.
(12) Stepping back from the fuss, it is worth thinking about whether the project's aims make sense.
(13) Her parents, a midwife and a retired fireman, said they were proud of their supremely focussed, "no fuss" daughter.
(14) He attracts controversy in February while denying Jermain Defoe elbowed Nicolás Otamendi, saying foreign players “make a big fuss of it.
(15) The fuss over who should pay for this scheme has, rather sadly in my view, overshadowed its goals.
(16) Perhaps air pollution hasn’t been solved because no one makes a fuss: scarier than the smog in Delhi , Kolkata and London is the stoicism of residents for whom bad air has become part of daily life.
(17) To this end it is they, not politicians, who need to be making a fuss about full-face veils and the need to phase them out.
(18) Some case notes make harrowing reading: cells occupied by disabled prisoners with no wall bars and inmates having to drag themselves across the floor and falling frequently; PAS "having to make a fuss" to get inmates supplied with basic needs, such as walking sticks, which are then taken away when a prisoner moves prison; and an incontinent prisoner with mental health problems sleeping naked on a urine-soaked mattress.
(19) Why quite such a fuss when nothing much actually happened?
(20) The infant's state was recorded on a check-list every 10 sec using the following categories for sleep and wakefulness: Quiet Sleep A, Quiet Sleep B, Active Sleep Without REM, Active Sleep With REM, Active Sleep With Dense REM, Drowsy, Alert Inactivity, WAKING Activity, Fussing, Crying, and Indefinite State.