I've invited people who are strangers to me into my home many times. Friends invite friends so strangers show up at my house and I welcome them. Everyone was po

I've invited people who are strangers to me into my home many times. Friends invite friends so strangers show up at my house and I welcome them. Everyone was polite because social norms dictate politeness when you are a guest. If they weren't then you bet I'd tell them to GTFO. I don't have to "expect anything" because it's my home, I make the rules.