You think people actually use their smartphones for phone calls?
![LOL :lol: :lol:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I use my phone a LOT, but never answer any calls. My phone has never been off of silent.
Now messaging, yes. People will message you 24/7. It is hard not to check your Facebook messages. Silent doesn't mean the light will stop flashing on your phone.