Tens of thousands of San Francisco commuters have probably taken a few moments to ponder this simple statement, which has been posted near the operator’s station of every Muni bus and streetcar since the early 1960s: INFORMATION GLADLY GIVEN, BUT SAFETY REQUIRES AVOIDING UNNECESSARY CONVERSATION.The message is simultaneously friendly and forbidding, inviting yet indifferent, personable yet coldly professional.And now, you can wear it.Printed on a 4.5-ounce preshrunk cotton Hanes Contemporary Fit tee, Market Street Railway’s
