Wife’s friend was sitting in her seat at 30,000 feet and reached into her purse for something when she realized she forgot to remove her .357 before going through security. 😬
Needless to say she didn’t say a thing to anyone and everyone survived.
I had a female friend do the same - but she didn't discover it until going back through TSA on her way home after two weeks away. It was a huge problem, that cost a lot of money and court appearances to get through.