Nedarim 30: Utterly Extreme Vows

A whole lot of mishnayot. One: A person who swore off benefit from seafarers. Or land-dwellers. But who's included in these sweeping statements? Two: One who swears off benefit from those who benefit from seeing the sun. But again, who is included here? The wording is specific. Exposed to the sun includes the blind, of course. Three: One who swears off the dark-headed. But whom does that exclude? Four: One who swears off benefit from those who are born. As compared to those who have not yet been born.