Fluent Dysphasia

A father in Ireland goes to watch a football match with his buddy while his daughter has to study Irish, or Gaelic - the ancient language of Ireland. After over-celebrating his club's victory, he awakes in the morning and finds he only speaks Irish, and that he doesn't even understand English. His buddy is aghast at this situation, believing his friend to have become possessed, but his daughter manages to translate his friend's assertion that this change may have been caused by a blow to the head during the revelries of the past evening's celebrations. They decide to hit him again, and use a frying pan for the job. Disastrous results ensue.