Townhouse dwellers are among the luckiest types of neighbors -- they get lots of practice sharing! There's the shared wall; that's obvious. And depending on the particular complex's configuration, owners are likely to share driveways, patios and outdoor space, too. Chances are, people who live in townhouses are well aware that sights, sounds and smells can easily leak from one part of the building to another. But until a pest infestation occurs, it's much easier (and definitely preferable) to ignore the other ways the home can be intruded. Because of the many obvious ways that townhouses are connected, there are also lots of hidden pathways.

You might think you know your neighbors, but how well do you really know them? If pests spread around a complex, prepare to get a lot closer. Surviving pest attacks often requires a united front...but afterward, it's hard to forget a new and more intimate knowledge of your neighbors' domestic habits.