You get a +2 bonus on Sleight of Hand checks made to conceal a dagger on your body.
|Light Melee Weapons (Simple)|
|Weapon||Cost||Damage (S)||Damage (M)||Critical||Range Increment||Weight||Type||Special|
|Dagger||2 gp||1d3||1d4||19-20/×2||10 ft.||1 lb||Piercing|
Book of Vile Darkness 3.5 By Monte Cook
Any weapon could be used as a device of torture, though traditional weapons do their jobs too well the risk of killing the victim too quickly becomes a concern. If a dagger is used as a torture device, each use deals 2d4 points of damage and allows one Intimidate check.
|Dagger||+4||–||2d4||2 gp||1 lb.|