Plane passenger terrified after spotting ‘ET’ on flight – then they realise what it is

A real-life optical illusion has left people scared after showing what looks like an alien sat in a plane seat – a passenger was left terrified as the shocking sight stared at them on a flightA real-life optical illusion has left people scared after showing what looks like an alien sat in a plane seat – a passenger was left terrified as the shocking sight stared at them on a flight