When one creates a rigged scenario or task where in order to complete said task or scenario, you must complete steps A and B. However, you cannot complete step B without completing step A and you cannot complete step a without completing step B, similar to how you cannot have a chicken without an egg and you cannot have an egg without a chicken.
My dad was Chicken and Egging me yesterday! He said I need to get a job but he also said I'm not allowed getting a job. I can't win!