When I was small we lived behind and above my aunt's hairdressing business so callers came to the back door via an entry (what Coronation St watchers would know as a ginnel). One day a knock came at the door and when I went there was a tall Sikh in a turban who was selling rugs.
I had read too many adventure comics for my own good and I ran screaming into the shop to tell my aunt and mother: "There's a cannibal in the garden!".
Red faces all round! They apologised to him for my ignorance, he apologised for scaring me. I learned a lesson in multiculturism.
RtS