The advert for protein drink For Goodness Shakes was sent in a direct marketing email. It shows men vigorously shaking something below waist level, just off camera, in a series of public places.
The 'reveal' at the end of the ad shows that men were shaking a protein drink, with the 'punchline': "We shake for you ... the protein shake without the shaker."
The final scene - featuring a man appearing to ejaculate behind an attractive woman in a lift - particularly concerned the Advertising Standards Agency. They felt the whole clip "alluded to masturbation."