In co-op, Moxxi can award this weapon once per visit to Sanctuary.Self-inflicted damage and damage done by explosive barrels to the character will trigger the Bad Touch's healing effect.While the corrosive element is only usable against armored enemies, it is more effective at such purposes than most other SMGs.
It is a particularly good weapon for Siren builds, since their class mod bonuses to submachine guns and elemental damage serve to make the already powerful weapon even better. The Bad Touch is an extremely powerful variant of the Maliwan Venom submachine gun, with a high base and elemental effect damage. While wielding this gun, any damage done by the character heals them at a rate of 2% of the damage inflicted. When I'm good, I'm very good. – Always corrosive.