Kharne currently has cursed items, which as well as being 'sticky' in the traditional sense also have negative modifiers on them, e.g.:
Nick McConnell has posted an interesting expansion of this idea on rec.games.roguelike.angband that expands the idea of "cursed" items to also bestow a wide range of negative effects upon the unfortunate player. This is appealing to me and I think I might implement something like this in Kharne eventually.
Of course, there would have to be another source of positive effects to balance these out.