Originally Posted by
mahasamatman
Welcome to FT, flyer321!
Never lie to a border agent. They have unlimited power and no sense of humor. Border agents don't care about throw-away tickets, and they won't even know about your B to C segment anyway.
But they do perhaps know. I got called out in the Netherlands about three weeks ago as I put 4 days as the number of days staying. I was planning to stay one extra day and just do a SDC but since I can't do that until 24 hours of the flight my booked flight was still listed. I'm not sure what pops up on their screens but I'm sure they have access to certain things.