Strip clubs, bars, prisons. That's where all the fun happens.
Perhaps that's why these establishments are among the first to bounce Google Glass from their sight.
The latest to stand firm in the face of a potential privacy breach by style-free glasses is Guantanamo Bay.
The Glass half-empty exploits of Miami Herald journalist Carol Rosenberg brought this to my attention.
Rosenberg, who is writing about the pretrial hearings of a September 11 trial, has documented her attempts at using Glass at Camp Justice.
For example: "Glass' video captured some forbidden portions of the war court's Expeditionary Legal Complex, including a slice of a no-show tent behind barbed wire with an abandoned cell and also a corner of a fence covered in green netting. Censored!"
Any and all footage taken at Guantanamo has to be examined by the authorities. Yes, it's rather how Edward Snowden says your e-mail is examined.
On Monday, Rosenberg was asked to remove her glasses. Shortly afterward, she tweeted that a new sign had been erected.
Her tweet read: "New sign at #Guantanamo warcourt: No #GoogleGlass -- or any other "visual enhancement device." #campjustice pic.twitter.com/0krLgdoDxF."
She added a picture, which included one of the more famous publicity shots from Google itself. Daubed upon it in red: "No Google Glasses!!!"
And so Google's attempt to infiltrate yet another private area of the world was thwarted.
Oddly, though, Rosenberg felt a touch flattered: "As the only user of Glass currently on the base (I have one of 8,000 Explorer editions worldwide) I appreciated the personal touch."
Perhaps Google might try to claim it isn't bound by the laws being enforced at the Bay, just as it reportedly doesn't feel bound by U.K. privacy laws.