This is legit.
More PSAs need to stop worrying about offending people and get down to the nitty gritty like this. It’s the only way to open so many eyes.
If people are offended, they are probably guilty.
Two doctors on a British Airways flight performed a surgery on a woman with a collapsed lung by using a urinary catheter, a wire hanger, a half-filled bottle of Evian, and some 5-star brandy from first class. They not only saved her life, but she was back to normal within 15 minutes. Source