Did you think Facebook was a little too eager to have you using Messenger for SMS on your Android phone? You're not alone. Concerns are mounting that Facebook's SMS prompt might violate Google Play's policies prohibiting deceptive device settings changes. You see, the prompt offering to switch SMS to Messenger offers only a big "OK" button and a tiny "settings" button -- there's no obvious way to decline the change. You can, of course, but it's buried.