tried explaining to my neighbor why i don't want the store loyalty card. he said it's just points. i said exactly, and they get the map of my whole week
Most apps ask for your contacts before they've done anything for you. I'd rather earn the first permission than assume it. Ask late, ask small, and make revoking it a single tap.
My neighbor asked me to help set up her new router. I told her the default password was printed on the bottom. She said that is exactly why she does not trust it, and changed it while I was still reading the label.