Why can’t she tell her she saw a gun in your house? This woman referred her to you. Most certainly she needs to be told.

I have a handy man who sometimes comes fixes things for us. He’s very good and we’ve been telling other people about him. We originally met him on nextdoor. If he went elsewhere after our referral and was put in to unsafe situation, I’d need to know that! I’d need to know not to recommend that house to anyone and I need to know that so I never go there myself. What do you mean it’s no one’s business? She made a referral. It becomes her business!

It’s not unprofessional or inappropriate. It’s a safety concern

House being too dirty might be just an excuse. She might be scared to even speak of real reason. She possibly felt threatened