gawidadik
A magic word used to get irritating people to go away. Whisper it quietly to yourself for a while as a calming mantra, and if that doesn't work, enunciate loudly and clearly, "GO. EAT. A. DICK!" This practice is found in the retail and customer service professions of some english-speaking cultures.
"Gawidadik, gawidadik, gawidadik..."