An airline passenger claimed that a security guard threatened to arrest him because he was wearing a T-shirt showing a cartoon robot with a gun.

Brad Jayakody, 30, from London, said he was stopped from passing through security at Heathrow's Terminal 5 after his Transformers T-shirt was deemed 'offensive.'

The IT consultant was set to fly off on a business trip to Dusseldorf in Germany when he was pulled to one side.

Link

Note that the journalist didn't do his/her homework. Megatron was on the shirt, not Optimus Prime. Silly Brits. :p