I edit photos for my primary job at the moment. Nothing grinds my gears more than people hiring photographers only to ruin every single photo by having them or a family member holding up their phone. No, your photographer or editors are not going to remove every single one in Photoshop. If there is a hired photographer, put your phone away unless you see they are actually missing something!
PS: Don't get in the way with "real cameras" either!
PPS: Turn off your goddamn ringer.
This is day 31 of #100DaysToOffload
