There is an occupational hazard for our itinerant Maori  woman 'rousies'
who work with shearing gangs, picking up the shorn fleeces, throwing
them on the sorting tables, for tidying up before rolling and packing into
bales. They are prone to a mastitis caused by the sharp ends of wool
embedding in their breasts, and working inwards. Much worse if breast
feeding at the time.
Mary