Or the sales staff in the fancier retail stores that after I tell them I'm just looking around, will proceed to stand behind me and stare at me.

Maybe they judge me too poor for their products and it's an attempt to get me to leave...

>At the far end of the scale are bathroom attendants who want to help me wash/dry/moisture my hands after using the facilities.

I've never ran into these and I hope I never will.