Here's some hints.

Original picture by Scott Beale/Laughing Squid, and the link in the picture itself goes back to Laughing Squid for letting us use the picture in the first place! -- thanks for letting us know, Scott!

Photoshopped picture by Tim Daw -- thanks to the reader who forwarded it to us! If you want to Photoshop some messages onto Frank Chu's sign too, we'd love to see 'em!