An Irishman staggers into a bar demanding a beer. The bar keeper curtly informs him that he does not serve drunken
patrons.
After a roistering argument, the barkeeper wearily asks the newcomer to show that he was not drunk by doing twenty push ups off the floor.
While he was doing the push ups another Irishman staggers in and sees this guy on the floor doing his push ups.
He observes the man for a moment and then kicks him on the ribs
saying: "hey! I think your girl has gone home!"