The rascally spies of OSS knew a thing or two about mischief making, especially when it came to undermining America’s enemies in World War II. One of their more imaginative ideas was to train everyday citizens in the art of simple sabotage.

Thus, the “Simple Sabotage Field Manual” was born: [PDF 2.5 MB].

This previously classified booklet describes ways to train normal people to be purposely annoying telephone operators, dysfunctional train conductors, befuddling middle managers, blundering factory workers, unruly movie theater patrons, and so on.

In other words, teaching people to do their jobs badly.

OSS Director William “Wild Bill” Donovan had select parts of the manual declassified and disseminated to citizens of enemy states through pamphlets, targeted radio broadcasts, and in person.

While the guidebook does contain ideas for serious, hardcore sabotage you’d expect during wartime, there are many timeless (and dare we say all-too-familiar) tactics that could drive even the most sane person batty.

Here’s a list of five particularly timeless tips from the “Simple Sabotage Field Manual”: