It's bad to drug someone so you can rape them.
Ronald hasn't had sex in a while, and is very attracted to his new co-worker.
Ronald wants to have sex with her.
Ronald speaks his interest in his coworker to her, and asks if she'd be down for a one night stand.
Ronald invites the co-worker to his place and drugs her, so he can rape her.
The coworker happily agrees, being attracted to Ronald as well.
The co-worker comes to after, and files charges, getting Ronald arrested.