The use of sarcasm for humorous purposes and intergroup communication as leading problems caused by intercultural discourse between Thai and non-Thai staff at an embassy in Bangkok. The study specifically investigated Thai and non-Thai staff perspectives toward these issues to discern feelings, reactions and responses. In addition, solutions were formulated to resolve the intercultural communication problems. Qualitative data was collected divided in two sections: 1) Use of Sarcasm for Humorous Purpose; and 2) Use of Intergroup Communication. Results were that most Thai staff perceived humor negatively due to cultural unfamiliarity while non-Thai staff considered it less seriously.