Back in 1958, high-school sophomore Diana McGee chose as her biology project an experiment "to make a hamster an alcoholic, then to cure it of the disease." She named the hamster "Alchy". The hamster consumed about a pint of bourbon a month and reportedly "seems to love it." Unfortunately, the news report never followed up on whether McGee was able to cure her hamster of his habit. Nor did it reveal what grade McGee got for her project.
Source: The Salina Journal (Salina, Kansas).
Update: I actually spoke too soon about the lack of a follow-up. Another search revealed that the Salina Journal did report on Apr 25, 1958 that Alchy eventually refused to drink any more of the bourbon-water mixture, leading the paper to comment that "the animal has more sense than some people."
They call it butt chugging actually it is an alcohol enema. Without passing through the stomach the alcohol gets absorbed faster so the effects are felt sooner. The person's blood alcohol level increases faster also and that can be dangerous because they are unaware of how much they have 'consumed'. At a recent frat party in Tennessee a young man was hospitalized with a BAC of 0.448 from butt chugging. I'd rather drink my booze thank you.
Ad campaign voted most likely to result in scatological jokes.
Also: see the "person" in the Persian Siamese cat "costume" in the top panel? Note how the shape of the cat head does not conform to the shapes of the human heads on display. The unnatural angle of the neck. And the cat is looking with its living "costume" eyes!
Plainly, this is a encoded warning against aliens among us!