If the 2007 Boston bomb scare is on the scary end of the public signage troll spectrum, this LA road sign manipulation is on the other. As LA Weekly reported, a Los Angeles transportation spokesperson said a curious message that appeared on one of its LED boards — "Read a fucking book" — was likely the result of an unauthorized intrusion. While I can't take issue with the message, typical road sign messages include traffic and hazard advisories, not aggressive attempts at building public erudition.

The only question now: who's responsible? My money is on Reading Rainbow star LaVar Burton, whose troll dossier includes an internet reading of Adam Mansbach's Go the F**k to Sleep. Is this the first strike in a viral marketing campaign for the new Reading Rainbow? The truth is out there.