Don't cross the rubicund...

Do not underestimate the Big Dude in Red, Finnzy-Bob. 
I wouldn't be surprised if he had heard you big hissy "he's not the real Santa, he has a bloody Dublin accent!". He may also have caught your dejected "I touched his beard, it doesn't feel real, it feels rocky" (???) 

We did explain to you that Santa is magic. That when he is in France, he speaks French. When he meets kids in Germany, he speaks German. And when in Geneva, he speaks in Swiss Francs. 

Be careful Finn. If you decide that you do not believe in Santa, he may decide that he doesn't exist. 

By the way, Christmas isn't for kids. It really is for dogs.