the idea is turning no-bark noonan in novac into a sane person, and possibly a companion if the players wants to bring him along
you would do this by implementing a dialogue option when he brings up the many rad-scorpion stings for a medicine check (75-100, depending on what you want)
if you have the required medicine level, you can fix up noonan, making him a possible companion
if you want, he could wear a vault 13 jumpsuit and have dialogue referencing the theory that he is the chosen one (FO2), possibly mentioning fighting the enclave and whatnot (just an idea based on a fan theory)
just an idea, could be cool