Farts: A Guide
Sure, everyone does it; but everyone tries to hide it a little differently.
Farts: A Spotter's Guide will help you pinpoint he (or she) who dealt it every time. This hilarious book identifies the habitat, range, voice, and "field marks" of ten common wind breakers, from the gentle hiss of the Silent-but-Deadly to the rip-roaring flatulation of the Seismic Blast. The attached battery powered fart machine reproduces each emanation in accurate sound!