Have Irish relatives on the inlaw side, My wife is Welsh, and my ancestors come from Canada. Could be some paddy in me though.
FFS Numb nuts you can't 'shat' in Guinness.You could quite possibly **** in Guinness but you can't 'shat' in it
He shat in it. Seems right to me? I **** in the Guinness would suggest he does it on a regular basis. ****ting would imply he was in the act of doing it. Shat suggests he did it but isn't presently or planning to in the near future.