Mark gets a headache and takes some aspirin to school.
It’s the 1950s: Mark gets a glass of water from the principal to take the aspirin, passes exams and becomes a solicitor.
In 2018: The police are called, the car is searched for drugs and weapons. Mark is expelled from school for drug-taking and ends up as a drop-out.
Johnny takes apart leftover fireworks from Guy Fawkes night, puts them in a paint tin and blows up a wasp’s nest.
It’s the 1950s: The wasps die.
In 2018: The police and the anti-terrorism squad are called. Johnny is charged with domestic terrorism, his parents are investigated, his siblings are removed from home and the family’s computers are confiscated. Johnny’s dad goes on a terror watch list and is never allowed to fly again.
Johnny falls over while playing football during the morning break and scrapes a knee. He is found crying by his teacher, Mary. She hugs him to comfort him.
In the 1950s: In a short time, Johnny feels better and goes on playing football. No damage done.
In 2018: Mary is accused of being a sexual predator and loses her job. She faces three years in prison. Johnny undergoes five years of therapy and ends up sexually confused.