My worst incident isn't very bad compared to some of the other stories. I was sitting in an isle seat on a morning flight on JetBlue. As the FAs poured drinks I noticed one wasn't being very careful. Instead of setting the cup on his cart and pouring into it he'd hold the cup in one hand and pour quickly with the other. You can probably see where this is going.

As he stops next to me he pours a coffee over me for someone across the isle. Half the coffee ended up on my leg. I was wearing a suit. He gave me some napkins but said very little. I remember he didn't apologize.