[pzo]

I didn't mean that this is ok to punch someone. My point is it will annoy a lot of people and some will eventually punch you. There are many legal things that if you do you are just asking yourself for a problem.

I also think in some countries it might be illegal to record someone either video or audio without explicitly telling or asking for permission. Even at the airport (at least in many I have been) it was not allowed to do video recording