It depends on where the stranger is and what the stranger is doing. A stranger called my house telling me that my computer was causing problems on their server. She wanted me to turn on my computer and allow her to remote into my computer to fix it.
I did respect her because I knew what she was trying to do. I politely told her thst I was in IT and that I would fixed it. Then I hung the phone up. Some may say I was bring polite. I just didn't see any need or benefit to me to get angry and call her names. I figure if she takes me as stupid then I'll pretend not to be irritated towards her.
Was I polite to her? Probably not. The "common courtesy" was probably more of a deception towards her just like her politeness was her deception towards me.
I learned a long time ago that not everyone who is nice to you respects you.
Depends on the person in the situation. Self defense teaches us not to take rides from strangers. We tell kids not to talk to strangers. If you have a peep hole in your door it's because you think the stranger may be someone dangerous. People buy ring to see who is at the front door. People buy security cameras to capture strangers stealing.
So yes. Sometimes I decide that I don't respect someone I never spoken to. Talking is not a requirement for giving respect or disrespect.
Not not really. Besides motives sounds underhanded. Maybe sometime's it's the best way to work and get things done
