My worst (to date) was when I spilled a glass of water on the gentleman sitting to my right. I usually make a very conscious effort to pay special attention when picking up my glass, but I was reading, was distracted, and let my guard down. I felt like an idiot and what made it worse was that he was such a gentleman about it. I think that when I immediately said, "I'm SO sorry!", he had already forgiven me and forgotten that it happened. I'm just glad that it wasn't a glass of red wine.
I'm considering bringing my own sippy cup in the future. ESPECIALLY when I have red wine