Backfire

Backfire is a general term for when an item is used to produce a beneficial effect and instead either inconveniences or outright harms its user. This effect mainly occurs in engineering devices.

Examples of items capable of backfiring include (but are not limited to):
 * Gnomish Poultryizer
 * Gnomish Shrink Ray
 * Rocket Boots Xtreme
 * Dimensional Ripper - Everlook