This rash does not whiten when pressed with a glass - the 'glass test'.

BBC: Precautions follow meningitis deaths

Pressed against my glass case door.

ENGADGET: Switched On turns one: The Maven

And breakups, awkward and drawn-out in person, are even more so online as details are parsed by the curious, their faces pressed against the digital glass.

FORBES: Breaking up in a digital fishbowl, revisited. (Or: How the New York Times filleted me on the front page of the Style section)

The symptoms of bacterial meningitis are a very high temperature, stiff neck, and a blotchy red or purple rash which does not fade when the side of a glass is pressed against it.

BBC: Vaccine hope for deadly brain bug

But if you pressed your face to the glass, as Kendall was doing, you could see the biscuit-colored beach running down to Navy Pier, where they were just now lighting the Ferris wheel.

NEWYORKER: Great Experiment

She pressed her pallid and wild-eyed face up to the glass so that her nose and lips flattened and distorted.

NEWYORKER: The Visitor

Staff wear pressed white shirts with red bow ties, Coke is sold in glass bottles and all the ice cream for the sundaes, banana splits and milkshakes is produced on site in small batches.

BBC: Taking a bite out of the Big Apple