A thread I just stumbled upon made me wonder about that. And, of course, the gazillion shots on the net of people having a mishap:
What's the law for photographing people in your country?
In Germany it is
quite restricted.
If you want to take a picture of someone you are not allowed to do this without permission. Unless it is a "public figure" or "person of public interest" or that person is not the focus of the shot, like crowds at a public place. Well, you can take a picture but you are not allowed to publish it in any way - and as most things so easily find their way online...
Even mugshot equivalents aren't allowed. A suspect stays pixelated until found guilty (though some tabloids circumvent that sometimes by re-printing it from another, usually foreign, source). And, of course, one has to have release forms signed for professional shoots.
I got into a fight once with a foreign visitor who took a photo of me in my favorite pub. A good one, too, with me looking thoughtfully at my Guinness. But I protested, lengthily, until he finally deleted it (we all ended up in his sisters kitchen drinking Jägermeister until the sun came up, but that's a different story
). There's no picture of me to be found online, and if there ever will be I want to be the judge and in control of it. As far as possible.
Just as I would never just publish family or friends.
How is it at your place?
If some unlucky pedestrian has, let's say, the bad luck of 100 pigeons dropping their load on him simultaneously... could you just shoot him for the rest of the world to laugh at? Or, less embarrassing, how to you do it with them portrait shots you share on this forum?