Long time ago, when I was a little boy I was walking home from school I saw a girl who I stared for a long time... She didn't know why and that was driving her insane, so she came to me and ask me "Why are you looking at me like that?" I answered: "Why aren't you wearing shoes?" She said: "What do you mean? I don't have neither a family or money. I can't afford that" I didn't know what to answer so I just left. When I got home I told my mother and she got really angry with me and told me to never do that again. I could never understand what I have done until I grew up.
Hope that helps!! :)