I'd like to able to walk through a town at a calm, leisurely pace without everyone and their mother telling me their life-story. If you know what I mean. Basically I want people to treat me like the stranger I am, cause frankly it's bloody annoying as hell to have everyone shouting in my ears whenever I walk by them.

I tried fiddling around in the Creation Kit but I'm afraid I'll sooner break something than find out if this is actually possible. So maybe someone who knows what they're doing has figured this one out by now. If a mod like this already exists feel free to link. It's hard to know what keywords to use when looking for a mod like this.

Not sure where one is, but I'd also be interested in a mod like this.

Nothing worse when you're trying to overhear a conversaion, and some lady decides to start talking at you, causing you to miss important information.

Theres Cipscis' http://skyrim.nexusmods.com/downloads/file.php?id=746.

I've been thinking of making a ...gag mod, Dragonbreath, that makes an L_NavCut sphere follow the player after they eat garlic. Dragons, villagers and even Barbas would back away in apparent revulsion.

http://skyrim.nexusmods.com/downloads/file.php?id=746

This what you're looking for?

EDIT: Justin beat me to it by just a bit, ha.