So...what about hitting coaches or trainers or scoreboard operators?
This sticker is above the doorway of some bar or lounge. I've forgotten exactly where it was that I took this photo, but it's in Center City. I recall what I was doing the day I took it, so I think it's somewhere between 20th and 23rd, between Market and Chestnut or Sansom Streets. That's the best I can do. I plan to go out tomorrow and take my camera with me, so perhaps I'll run into it again.
UPDATE: It's outside a place called the Medusa Lounge. 27 S. 21st Street.