The Irish President's massive mountain dog snubbed Joe Biden and barked at the US President after totally stealing the show on his historic visit.
The US President made a visit to Áras an Uachtaráin, which is the home of the Irish President Michael D Higgins and his wife Sabina in Phoenix Park, Dublin, to inspect a military guard of honour, sign the visitors' book, plant an oak tree and rang the Bell of Peace.
The Irish President has two ginormous Bernese Mountain dogs including Misneach, which is the Irish word for courage, and Brod, the Irish word for pride.
However, things didn't get off to a great start for Mr Biden and the first lady after the Irish President's beloved dog Misneach refused to go over to him - despite multiple attempts to beckon the pooch.
Misneach headed out the house to see what all the fuss was about - but the dog was not interested in greeting the US president.
The Bernese Mountain dog instead barked at the US commander-in-chief and refused to walk over to Mr Biden - despite desperate appeals from the Irish President.
Social media users were in hysterics at Misneach's snub as one person joked the dog was a Trump supporter.
"So Misneach is clearly a Trump supporter. The cheek of him to bark at President Biden", one user said.
Another predicted it was the end of the dog's Hollywood career after rejecting the US president.
One user said: "Well that’s Misneach’s US movie career ruined!"
Many believe the dog only responds to requests in Irish which explains his awkward snub to Mr Biden.
A user wrote: "Misneach only responds to requests in Irish!"
Mr Biden didn't let the snub faze him as he commented on the Irish President's huge house, which was similar to the White House and left him deeply impressed.
He joked to reporters: "I'm not going home. Isn't this an incredible place, all you American reporters, it's just like the White House, right?"
Despite the snub Mr Biden signed the guest book and shovelled in dirt for a freshly-planted Irish oak, not far from the one planted by then-President Barack Obama.
He also rang the Peace Bell, unveiled in 2008 to mark the 10th anniversary of the Good Friday Agreement, which ended decades of violence in Northern Ireland.
Then he thanked Mr Higgins, who turns 82 next week.
“I’m feeling great, and I’m learning a lot,” he said Thursday. “I know it sounds silly, but there’s many Irish-Americans, like my relatives, who’ve never come back here.”
Mr Biden will also meet with Taoiseach Leo Varadkar, Ireland’s prime minister, before a speech to parliament in which “he’ll be reflecting on the long, close and shared history between the United States and Ireland" said Amanda Sloat, the National Security Council’s senior Europe director.
