Antarctic Explorer
There was the time I convinced a significant number of classmates that I had won a “Young Oceanographers” tournament some year prior and had subsequently embarked on a summer-long study of Antarctica.
The amusing thing is that they were aware enough to ask me how the boat got around in such cold conditions, since summer in the Northern Hemisphere (where I live) would be winter in Antarctica.
I told them I did it in place of a semester of school, which was why I’d had such weird social skills early on in high school. Story credit: Reddit / Pileus