“Guess – What’s in my mouth? Pull my hair – and see. It’s a Dr. Miles Laxative tablet. What did you suppose it was? It’s dandy to take. Because they taste like candy.”

Wow! A 20th century interactive laxative ad! Gosh darn.

Source: “Dr. Miles’ Laxative Tablets” (1910) by Miles Laboratories. Credit National Library of Medicine, public domain.