TG Captions are one of my favorite forms of storytelling. There is no narrative fluff, no extraneous details, just the hook, the twist, and the climax.
Vacation had me admiring a lot of bodies, thinking about how wonderful it would be to swap places with them, while the ordeal of customs and airport security had me thinking about rules . . . and the consequences of breaking them. This story pretty much popped into my head fully formed, I just had to find the right image.