Ground staff earn €2.50 for every piece of oversized luggage that they intercept. Meanwhile, passengers who are caught out pay a much bigger penalty

Name: Oversized cabin bags.

Age: Venerable – but prior to the advent of airline cabins, they were simply known as “bags”.

Appearance: For our purposes, anything larger than 40cm by 30cm by 20cm.

How am I supposed to know if my bag is bigger than that? Shove it in that cage by the gate desk at the airport – if it doesn’t fit, you must submit.