PC correctness
Apparently it's no longer politically correct to direct a joke at any racial or ethnic minority so try this one:
An Englishman, a Scotsman, an Irishman, a Welshman, a Latvian, a Turk, an
Aussie, a German, a Yank, an Egyptian, a Japanese, a Mexican, a Spaniard, a Russian, a Pole, a Lithuanian, a Vietnamese, a Swede, a Finn, an Israeli, a Romanian, a Bulgarian, a Serb, a Swiss, a Greek, a Singaporean, a Fijian, an Italian, a Norwegian and a South African went to a night club.
The bouncer said: "Sorry, I can't let you in without a Thai"