Conferences, where most people are strangers and there to swap contact info. And of course bars and clubs and conference parties... an attractive woman or man wants to give your drunken self their contact info! Woot!

And that's not even what I was really thinking of... in poor countries the last thing you want to do is pull out a smartphone, let alone pass it to the doctor, tour guide, taxi driver or whoever you think is standing in front of you.

My mom actually had to help someone who had their phone stolen in this fashion. In the women's restroom at the county fair, she csme across someone who was in need of some sort of medical assistance. This somewhat incapacitated woman handed her phone to another woman with instructions to call for help. This second woman then simply ran off with the phone, and shortly after my mom happened by.

Not Nigeria or LA, either.