How would you use malign in a sentence?

Benny's dad would often offer him ice cream as an incentive for mowing the lawn.

He has a fastidious boss in his new job, he just doesn't know how to please him.

Her act bedazzled the crowd; they were truly stunned.

Tiger's mistress blackmailed him with intimate photographs of them and threatened to sell them to the press if he did not comply to her requests.

Bob was dead.