I have thought it would be cool to befriend a drug crazed raider. Mainly because it would be nice to actually be able to do something besides just shoot them. Maybe find them all beat up, heal them, work with them through their addictions, give them a reason for living, etc., I think the background could be really interesting. As far as helpful skills, melee and the ability to make drugs from raw materials, have a lot of survival lore, etc.