Is AUTHOR wrong in the post ? POST : I recently went to an arena that has little stands that sell canned beers. The beers themselves cost $12, so I went, ordered one and when asked to tip I declined, but when I left my friend said the worker seemed insulted that I didn't tip, but we literally had a two second interaction where they asked me what beer, I said which and they handed it to me and I paid. I work in the service industry, and I am a great tipper, I just don't feel like that two second interaction requires tipping. AITA?