@deerbard_photo I've never did it but people is not my subject. From what I gathered almost no one would be offended - it's all in the way you do it and the way you react if you get caught. If you do it with a pro camera these days people assume your doing art photography, if you do it with a smartphone then the assumption is you're mocking them. I think it's worth a try! Worst case you offend someone for a minute, otherwise you could make someone's day or even make friends!