Get your daughter a whistle and tell her to blow it and to run if any man comes up to her when she's in her own yard playing. Call the police and report this man's bizarre behavior. The police may be aware of other complaints you are not. They need to know about strange behavior in neighborhoods. Predators will often 'test the waters' first before they strike. They look to see who is around, what doors and windows are open and/or easy to force; pathways to a get-away; and how people react to them invading their personal space. Just because he didn't 'do anything' in broad daylight doesn't mean he won't come back in the dead of night. By the way, I wouldn't care if it were a neighbor's workman; let them wash their hands at the neighbor's -- this guy is up to no good.