Back in October 2009, she sat excitedly in front of the television set with husband Johnny as they watched grandson Tim Boys, wearing a Southland jersey, celebrate an unexpected 9-3 win over Canterbury in Christchurch.
Then, last Friday night, Audrey had a second magical shield moment as she watched another grandson, Hayden Parker, spearhead Otago to a shock win over Waikato in Hamilton.
Only this time there was one huge difference for ''Nana'' Foster - she watched the thrilling shield game on her own, her husband having died in March this year, aged 77.''
Johnny would have been so proud,'' she said this week, recalling how when he was buried in the Hakataramea cemetery, his coffin also contained a Highlanders flag signed by his two grandsons.
Boys and Parker played together in a Highlanders warm-up match in Oamaru in February against the Crusaders and, while Mr Foster was in hospital and too ill to attend the night game, his wife was among the 5000-strong crowd and was thrilled to see her grandsons participate in the 38-21 win, Parker scoring two converted tries.
The cousins signed a Highlanders flag for their ailing grandfather and it had pride of place in his room back at Whalan Lodge rest-home, where he died less than a month later.
Mrs Foster said her husband, one of a family of 11, had been an accomplished sporting allrounder as a schoolboy - ''you name it, he played it'' - and was so good at long jump, he had to have a special mark to leap from, otherwise he would ''jump right out of the pit''.
The couple had four daughters, including Lorraine Parker, known as ''Gert'', mother of Hayden, and Paula Boys, mother of Tim, nine grandchildren and five great-grandchildren.
The Parkers are farmers at Otiake, near Kurow, while the Boys now live at Winton, having previously been neighbours of Richie McCaw's family in the Hakataramea Valley.
Mrs Foster admits she got very excited watching Otago's shield win last Friday night - ''I was yelling so loudly at the TV, the dog [Muffin], who was asleep, got such a fright she started barking at me as I was jumping up and down.''
But this time, she's going to watch the action live, making her first visit to Dunedin's stadium to watch Sunday's shield defence against Hawkes Bay.
''It was on my bucket list to do - now I've got a very good reason to go to the stadium.
''I just hope Otago can hold on to the shield - I've got my fingers crossed. One thing's for sure, they'll play their hearts out.''
Parker said his grandmother was very keen on her rugby and loved watching him and cousin Tim play.
He had spent much time at the family farm when he was growing up and until a couple of years ago, the family always went to their grandparents for Christmas.
''The whole family will be coming down to watch on Sunday and I know she'll love it.''
Parker said his late grandfather was a staunch rugby supporter.
''He followed us everywhere and just loved the game. He was a great supporter. Hopefully, I can make him proud on Sunday.''
