I sat in Silky O'Sulivans for hours watching these goats expecting them to do something. I asked our server why they were called diving goats, are there other nationalities of diving goats other Irish? He replied with a exaggerated eye roll and said "You want fires with that?" So much for his tip.
I googeld "Irish diving goats" when I got home and came up with nothing. But of note, one of these goats was at the Bartman game. It also seems as if the goats were allowed to drink beer before PETA got involved.