Picture the scene: It’s 1970-something, and you’re glaring at your spouse, slumped on the couch, Chiko Roll crumbs collecting in their creased bell-bottoms, and you wonder — realistically — how many episodes of M*A*S*H can a person watch to distract themselves from this marital misery?

Finally, you agree to couples’ counselling in a last-ditch effort to save your relationship.

But how do you get this clam of a human being to open up and express their true emotions? Well, if you’d been in the US at the time, with recreational party drugs, of course.

First synthesised in 1912, MDMA only became popular in 1970 after its slightly sassier, more hallucinogenic, older sister Sally (aka, MDA) was made illegal.