A bunch of guys walk into a bar..

An Afghan, an Albanian, an Algerian, an American, an Andorran, an Angolan, an Antiguans, an Argentine, an Armenian, an Australian, an Austrian, an Azerbaijani, a Bahamian, a Bahraini, a Bangladeshi, a Barbadian, a Barbudans, a Batswanan, a Belarusian, a Belgian, a Belizean, a Beninese, a Bhutanese,