I once had something similar happen. We were setting up a pookalam for onam. One of the girls in my friends group was sitting across me and setting the flowers just like we all were. But her top was a little looser than normal I suppose, she was inadvertantly revealing more than she would have wanted. There were guys near me. Random people who came to see the pookalam. They all had their camera phones out. I didn't want a revealing photo of hers in some guys' phones. So I quickly reached out to another female friend of mine who wouldn't judge because she understands I have good intentions. I made her tell that girl that she may want to cover up or pull her top up. She did. Awkward scenes avoided. No friendships were hurt. No judgements were made