Venue - a church with a choir (from 2 x secondary schools) , singing a religious choral set.
We were all told by a deputy head teacher, no mobiles for photos or filming.
Part way through the second half, a teacher at one end of the front row starts filming about 20-30 seconds worth of footage at 2 stages of the concert. Then she was giggling and whispering to her friend next to her whilst solos were taking place.
I signed a disclaimer saying yes to photos by the school's photographer, not be a member of staff on her personal phone.
AIBU?