There is this American tourist on a trip around Ireland.
When the tour arrives at Belfast he decides to go for a stroll with the aim of taking in this new culture.
After he has been walking for a while someone rushes up behind him and sticks a gun in his back.
The person says to the tourist "What are you, Catholic or Protestant ?"
The American thinks to himself "Great - if I say I am Catholic, this guy is sure to be Protestant. If I say I am Protestant, he is sure to be Catholic. Either way I am dead."
Then he has a brain wave and says to the Guy, "actually I am Jewish".
This, he thinks to himself will surely keep him safe.
The guy behind him then replies "Gee, I must be the luckiest Arab in Ireland."