A pair of guests were recently caught on CCTV stealing a whole horde of amenities from a hotel in Wales – from towels and a kettle to an electric fan. While most people don't tend to commit such grand heists when travelling, even those smaller pilferages (from bath towels to pens and paper) aren't the perfect crime: hotels can and will deduct what you’ve taken from your credit card, while airlines may fine you if you’ve walked off with something you weren’t supposed to.

Here we investigate the murky grey area of what you can and can't take from aeroplanes, hotels or cruise ships. Click through the gallery to find out more...