"Windfall profits" refers to unexpected or sudden large profits that are obtained by someone or a company, typically due to a fortunate circumstance, such as a sudden increase in demand or a decrease in costs of production. Full definition
Having inside knowledge of political decisions that will affect population movements and land use gives opportunities for windfall profits for corrupt individuals. (religion-online.org)
There is the taking advantage of ignorance; manipulating people to purchase expensive things in time of bereavement; preying on the distressed; weishing on a bet; doing shoddy workmanship; raising prices for windfall profit in times of shortages; having your child lie to get a cheaper rate; falsifying your income tax form, or estimating your deductions very liberally; manipulating long distance telephone lines to send messages without having to pay. (religion-online.org)
For example, and in my opinion, the specification of a bird's nest upon the ground does not invalidate the principle of «showing mercy during a time of windfall profits». (nakedpastor.com)