People are entitled to their opinions. They are also entitled to keep 'em to themselves. If a person--by invitation or otherwise--wore a t-shirt like that in either my classroom or home, they would have to turn it inside out and stay or continue to expose me to their art statement and leave. That's the way it is. Alternatively, expose me to that when I've paid to see and hear a performance, I would get my money back and leave. That's the way it is. Personal rather than state censorship.

Bruce M