On a Big Bus, to the Big Smoke
Nana got on the bus. To go up to the Big Smoke, to vote for the Not-So-Popular-One, in order to bloc the Odious One.
She thought she's do a quick antigen test before getting on the bus, since Uncle Martin is still stricken with the disease.
It was a wise move. She wouldn't have wanted to be the cause of the cancellation of a world tour for giving covid to Ed Sheeran via one of his very enthusiastic fans who were also going up to the Big Smoke, for a big of craic in Croke Park.
Nana hates nothing more than unwillingly cancelling world tours.