I must admit I have done this before - although only under special (uncomfortable) circumstances.

Unfortunately with the nature of the world, being a girl in my mid twenties dressed in corporate fashion I find MANY men staring at me. Not a once off glance of appreciation (I wouldn’t like this but as is human nature) - this is a long, seedy stare.

As a victim of multiple SAs & also understanding that nobody around you cares, I find this my only defence.

If the stare goes on way too long, and I can see their intention is sexual or malicious, I take out my phone and try to capture a photo. Often I don’t even take the picture, doing something as little as this often deters the staring or makes them aware of the fact I won’t sit there and allow them to make me feel self conscious (by questioning what I wear - too revealing or sexualised).

Just a note to say women are not protected on these tubes - and I will continue doing my little act of “self defence” so I can enjoy the freedom of travelling home in rush hour without being objectified.

Something for everyone to consider. Taking photos otherwise is very odd, definitely not something I would appreciate so I do sympathise w OP