The quest "Fools Gold" where villagers get turned into pigs, except for one really endearingly not-very-bright-at-all guy that kinda stares at you like he doesn't understand what you said after you say something, THAT quest, for some reason, sticks with me.
That guy had like an intelligence of 1, and the poor thing had a broken arm, plus he liked to play in the mud, I just couldn't help but like the dim witted guy.