Anyone who puts on a shirt like that KNOWS whether it crosses the line, and they are doing it because it crosses the line....

The line is one of judgement personal taste and not fixed. But the question is less one of taste but of what could or should be done to address such things if or when someone consider that someone else has crossed a line.

Is it really anyone else's business what another chooses to wear in public. Other people wearing nothing would offend some of us and be thought to be crossing a line and would risk arrest. I suggest that - it would not offend any of our various gods and creators who felt this mode of dress was perfectly acceptable in which to be introduced to the world and through a certain orifice - often called a cunt.

But is it really so bad to read something that is not to your taste when no one is forcing you to agree with it? If someone is intentionally crossing a line only to shock, offend and be noticed - perhaps it is best to simply ignore it? For everytime a fuss is made - it simply means that the next time someone wishes to intentionally cross the line - it will be crossed even more. Hysterical reactions tend not to help but always to make matters worse.

'It's now very common to hear people say, "I'm rather offended by that", as if that gives them certain rights. It's no more than a whine. It has no meaning, it has no purpose, it has no reason to be respected as a phrase. "I'm offended by that." Well, so fucking what?'

Probably the very worst thing for someone who does something only to be noticed - is not to notice them. Artists do not usually mind if their work offends or delights - they do mind if no one notices it.