अनाहूत: प्रविशति अपॄष्टो बहु भाषते |
अविश्वस्ते विश्वसिति मूढचेता नराधम: ||

Subhashitkar has given some of the characteristics of a fool person here. He says, a fool person comes without invitation (he lands up anywhere even if he is not required i.e. he does not have self respect), talk even if not asked for (they have habit of poking his nose in other's business), and trusts a person who is not trustable (he is not able to evaluate others properly)