As I understand you, she would have to "opt out" of his advances or otherwise she is implicitly saying "yes", is that how you think? As I see it, she should no

As I understand you, she would have to "opt out" of his advances or otherwise she is implicitly saying "yes", is that how you think? As I see it, she should not have to "set boundaries" nor should she even have to deal with such advances in any way. It's a working environment and not a dating club! What he did (ask her to sit on his lap) has no place in a professional setting.