Not on an aircraft, but in the same category. Was at brunch with friends and family when the doting but new server came to ask if anyone wanted any orange juice. She leaned over to pick up the bread basket to replenish it and in the process the pitcher of OJ tilted over my father, who screamed in surprise, which in turn made her scream, and she was so shocked by what she was doing could do nothing but stare, scream, and keep pouring the juice. When the pitcher was empty, she ran off in hysterics as a fellow server helped her, and my father was quite a good sport, but was quite juicy for the rest of the brunch. At least it was freshly squeezed...