Congratulations to everyone who saw through our April Fool's Day story about plans to open a petting zoo at Heathrow's troubled T5 to calm stressed passengers.

We claimed airport bosses had decided to open the zoo after a series of flight cancellations and problems with the terminal's high-tech baggage handling system since it opened to passengers last week.

Animals expected to be introduced to the zoo included squirrel monkeys, donkeys, a ring-tailed coati, rats and a group of ferrets.

While most people seemed to get the joke it seems some thought the plan was genuine.