When in China, a friend of mine's Chinese teacher--a really shy proper College student--came to class wearing a shirt that said something along the lines of "Sex you for free." She left early when he pulled her aside to let her know what the shirt meant.
Again, NEVER wear something unless you are SURE of what it says <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" /> <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />