Character may interfere with the plans of a real or potential enemy, perhaps deliberately or perhaps inadvertently without even knowing what they did. This enemy may retaliate in some way, and this supplement has 100 different ways for them to do so. These ways may simply be acts of petty vengeance and are generally not intended to be fatal, but are disruptive, inconvenient and occasionally dangerous. The actions could perhaps even drive characters out of town. Some really need a setting with a technology of the 20th century or later, especially those involving computers, but, with a bit of tweaking, a lot are suitable for many settings.
Some of these annoyances are quite nasty things to do to characters which players may not appreciate, so use them with caution and be sure that you know your players will be okay with them. Do not overuse them either. Though "character" is stated in these annoyances, this can also be friends, relatives and associates of the characters, should a character lack something appropriate to target.
- from the publisher's blurb