Or simply illicit behavior such as drugs or forbidden dueling?

The Band is famous for its irreverent antics and illicit behavior.

Our sanctions programs are designed to combat illicit behavior and help achieve political movement.

After all that had come out concerning his illicit behavior, she could never choose him for a husband.

Politicians often argue that harm-reduction strategies can seem to promote illicit behavior.

Such illicit behavior was fairly normal at the time.

"I can't help feeling the warden has engaged in some form of illicit behavior."

In Martha's experience, "women were only paid well for illicit behavior," she observes.

There is either illicit behavior or mismanagement going on.

The placement gains much chagrin from the town's women, who believe that she may be paying for her medical care through illicit behavior.