This would be an example of operant conditioning. Since bananas are her favorite fruit she thinks that it would be fine to drink as many banana daiquiris as she would like despite the amount of alcohol in them, this would be the operant behavior. The next day she was sick because she over indulged in the banana daiquiris, this would be the punisher. And the law of effect would be because of the experience that she had with the banana daiquiris, the sight of the banana cream pie made her feel sick.