Vampire Security Checkpoint

You're a security officer in an old Transylvania town. Your job is to ensure the newly arrived are not vampires.

• Each round, a new person arrives at the checkpoint.
• You can ask them up to 5 questions to decide whether they should be let in or rejected.
• You'll be penalized for rejecting safe people and accepting vampires.
• Rejecting a safe person gives you 1 warning. 3 warnings end the game.
• Accepting a vampire ends the game immediately.