Nolan, and others, take issue with the sticker’s design.
“I would have appreciated something more subtle, yet still recognizable — a logo, perhaps, not a gun,” she said.
“You can’t look at this (sticker) and not think about Sandy Hook,” she said, referring to the 2012 school shooting in Newton, Conn., in which 20 children and six teachers were killed.
Nolan said she is not opposed to posting it, she’s just worried that not enough people are aware of what it means and could misinterpret the new signage.
I'm pretty sure that the red-strike-through is universal for NO. and, the gun probably means "gun" or "guns"... so I'm going to go out on a limb and say most people would call that "no guns"