As Princess Anne exemplifies duty and dedication to her patroned organisations, she must look at her brother Andrew Mountbatten-Windsor and think: "Useless idiot." It is hard to dislike the Princess Royal, 75, who oozes dry, down-to-earth humour with a wry smile and works day-in, day-out for charities, and organisations that genuinely help those in need in the UK.

While her feckless brother 'Air Miles Andy' was hopping on taxpayer-funded helicopters to play a round of golf and Sarah Ferguson was working out was freebie she could snaffle next, Anne has been involved with more than 200 charities and organisations in an official capacity. She's been dubbed the Royal Family's "trustiest anchor" and a "beacon of good, old-fashioned public service" and has carried out more than 20,000 engagements since her 18th birthday.

Anne is a rule-breaker and also a staunch national treasure and English eccentric. She sometimes drives herself to engagements and once held an HGV licence.

She does not shake hands with the public during walkabouts, explaining, "the theory was that you couldn't shake hands with everybody, so don't start".

So it was no surprise then when Scotland recently thrashed France in the Six Nations at Murrayfield and Scotland's Australian-born Sione Tuipulotu went to give Anne a hug while collecting the Auld Alliance Trophy, that she backed away.

Yet breaking her own protocols and with a huge smile she did shake Sione's hand, sparking a memorable royal encounter.

TV presenter Gabby Logan quipped at the time: "He always goes for the hug but Princess Anne is sticking with the formalities and hands him over the trophy."

It was a moment that was like a slap round the face for Andrew and Fergie - as if to say 'this is how royals are meant to behave'. It's what the public wants. It's what the public expects.

Princess Anne has served as patron of the Scottish Rugby Union for almost three decades and has been a familiar presence at Murrayfield since the early 1980s.

The SRU has previously described her as a "long-standing and committed supporter of Scottish rugby", noting she opened the East Stand in 1983 and has attended fixtures in nearly every season since.

Last Yuletide Anne showed her class and down-to-earth humour again during the Royal Family's traditional Christmas Day walkabout on the Sandringham Estate.

Outside St Mary Magdalene Church, a keen onlooker presented her with a bunch of bright yellow blooms only for Anne to express her genuine shock that the lady specifically picked the flowers for her.

Surrounded by royals including the King and Queen, she modestly double-checked: "Are you sure? I'm probably the last person standing!"

The fan gushed: "You're the first to me every year" before explaining she had "picked" the yellow roses recalling Queen Elizabeth II was fond of them.

Anne, with a wickedly cheeky smile, responded: "You didn't pick these yourself, did you? I was going to say, your garden is doing better than mine!"

As the fan began fumbling over her words, Anne put her at ease by laughing off her own joke and thanked her again - a clip that garnered millions of views on social media.

One viewer posted: "In my opinion, Princess Anne is so humble and low-key that she doesn't really want the attention."

Imagine being humble and low-key Andrew? We'll post a dictionary to Sandringham - you might need to look those words up.