I've recently rediscovered a latent interest in photography, so I've been taking a few random shots around London, and have a question for the more photographic members of the site. I'm aware that it is perfectly legal to photograph in any public place, but what about the etiquette of photographing members of the public? As an example I walked to work from St Pancras on the day of the tube strike and took a few pics on the way. There were some excellent opportunities, but I was a bit shy about capturing individuals who would have made excellent subjects. What's the etiquette, are people generally happy about it? By the way, if you feel like donating any constructive criticism: Some of my efforts.