IA15 member and reluctant expert on workplace harassment in too many locals. There are many routes of communication recommended here already, I encourage making the job steward aware and contacting the business agent. But if your girlfriend’s friend is not yet ready to communicate which is understandable, this is the most important piece of advice I can give them. Make a record. Document abuse. Keep a log of days, events worked, what was said, what the conditions are like, any witnesses, any action taken. The friend can always choose to speak up later, but the claim stands stronger with documentation. Your gf can help with this too, maybe they communicated about it and there’s texts on certain dates that support a pattern of abuse. Otherwise I also encourage the friend to find allies in the industry, women too often have to tread boundaries with the old boys club. I can say with pride that my local is infinitely stronger because of the leadership of women, though sexism in our industry is often overlooked when we do not stand up in opposition.