“Hi. I haven't insulted you yet, have I?”
The Absinthe Donuts Story http://www.tuckermax.com/archives/entries/date/the_absinthe_donuts_story.phtml#280,
The Tucker Max Stories
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Tucker Max 26
Internet personality; blogger; author 1975Related quotes

“If there is anyone here whom I have not insulted, I beg his pardon.”
As quoted (prefaced by the qualification, "There is a story that one evening, on leaving, Brahms said...") in One Hundred Songs by Ten Masters: Volume II https://books.google.com/books?id=irUQAAAAYAAJ&pg=PR12 (1917), edited by Henry T. Finck, p. XII
Attributed
Variant: If there is any one here tonight whom I have not offended, I apologize!

2000s, Burning embassies is not the way (2008)
“The stranger is simply a friend I haven't met yet.”
Source: Poustinia (1975), Ch. 15