This is that very Mab That plats the manes of horses in the night, And bakes the elflocks in foul sluttish hairs, Which once untangled, much misfortune bodes: This is the hag, when maids lie on their backs, That presses them and learns them first to bear, Making them women of good carriage: This is she-- ROMEO: Peace, peace, Mercutio, peace!