User blog comment:Miskos3/Fairy Tail OVA 8: Natsu vs. Mavis, Review/@comment-24603221-20161204143315/@comment-7418318-20161204145514

Not to mention the constant buzzing from incoming messages.

At first I was wondering why that person didn't just switch off their phone, but then I realized that everytime it buzzed, it also shook the picture and thus realized he/she was recording with the phone.