Questions of proportionality and the risks of unintended consequences are rarely given sufficient consideration.

In both cases the grounds of appeal alleged that the sentencing judge had failed to give sufficient consideration to what mitigation there was.

Love and affection, for example, would not constitute sufficient consideration, but a penny would.

One bushel of grain being exchanged for 100 bushels of the same grain would not be sufficient consideration.

Where contractual parties owe each other existing contractual obligations, but a third party offers a promise contingent upon performance of the contract, that promise has sufficient consideration.