Haha! I've done it!
Okay, this is a teaser/boast. For LoE I just got done implementing a new combat mechanic and a new debuff, Misfire and Haywire, respectively.
Misfire gives a chance for your pistol, shotgonne, tech item (e.g. grenades) or tech skill (e.g. I dunno yet) to cause misfortune to you, the caster/bearer. These effects include being lit on fire, knocked back, stunned, slowed, having your weapon jammed (-aspd) or just shooting yourself in the foot (damage). The chance your weapon/skill/item will misfire is mitigated by your Intelligence stat. The negative effects may sometimes need to be removed, which can be done with a repair kit.
Haywire is a negative effect that causes your skills/items/weapons to misfire much more often. It will probably be used extensively by tree-loving druids and snobby mages. It will be possible to remove it by using a skill or spell (probably one skill in a tech tree).
So misfire is your own misfortune while haywire is a skill that can be cast on you?
That sounds like it would tons-o-fun specially in PVP!
Sounds impressive. Moreover, you can add a critical miss.