Possible Clues:

• One swears by the ways in which a seaman may be employed
• Curses a sailor employs
• Takes advantage of
• One swears that they're 30 down at last
• One swears that public transport begins such corruption
• Employs or deals with incorrectly
• Corrupt practices a sailor employs
• Maltreatments
• Improper practices
• Takes advantage of, say