In the question How do I politely tell a stranger to stop making annoying noises I can't name? I posted a comment basically saying there was no good way of doing this and get some noise cancelling headphones.
Why was that comment removed? I specifically posted it as a comment and not an answer because on the one hand it wasn't really an answer, but on the other hand it was highly relevant to the question. (and up-voted quite a bit.)
Sometimes the best answer to a question is: you shouldn't.