An Englishman wants to marry an Irish girl and is told he needs to become Irish before he can do so. It is a very simple operation where they remove 5% of your brain.
Anyway the Englishman wakes up after the operation and the doctor comes up to him looking all worried and says "I am terribly sorry, there has been a mistake to be sure, we accidently removed 50% of your brain instead of 5%!"
The Englishman sits up and simply says "She'll be right, mate"